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Jeong J, Kim M, Kim SS, Hwang H, Jung J, Park NW, Kim J, Eom K. Case Series: Computed Tomography Features of Extraskeletal Osteosarcoma in Six Dogs. Vet Sci 2024; 11:282. [PMID: 38922029 PMCID: PMC11209523 DOI: 10.3390/vetsci11060282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/17/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024] Open
Abstract
The objective of the present case series was to investigate the various computed tomography findings of six dogs diagnosed with extraskeletal osteosarcoma (exOSA) at several locations. Among the tumors evaluated, four were subcutaneous, one was mammary, and one involved the intestinal tract. Intralesional mineralization was observed in all six dogs. Most of the tumors were moderately calcified, exhibited amorphous mineralization, and were heterogeneous on post-contrast imaging. Three of the tumors were peripherally enhanced, and regional lymphadenopathy was identified in two of the dogs, which was presumed to be metastatic. No lymph node calcification was reported. Although the presence of intralesional mineralization is not a pathognomonic finding, it was consistently identified in the present case series. Therefore, exOSA should be considered in the differential diagnosis when mineralization occurs in a mass unrelated to osseous structures.
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Affiliation(s)
- Jeongyun Jeong
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea;
| | - Minjoo Kim
- Shine Animal Medical Center, Seoul 05550, Republic of Korea
| | - Sung-Soo Kim
- VIP Animal Medical Center, Seoul 02830, Republic of Korea
| | - Hyunju Hwang
- VIP Animal Medical Center, Seoul 02830, Republic of Korea
| | - Joohyun Jung
- Ilsan Animal Medical Center, Ilsan 10368, Republic of Korea
| | - Noh-Won Park
- Nowon N Animal Medical Center, Seoul 01704, Republic of Korea
| | - Jaehwan Kim
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea;
| | - Kidong Eom
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea;
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de Brot S, Cobb J, Alibhai AA, Jackson-Oxley J, Haque M, Patke R, Harris AE, Woodcock CL, Lothion-Roy J, Varun D, Thompson R, Gomes C, Kubale V, Dunning MD, Jeyapalan JN, Mongan NP, Rutland CS. Immunohistochemical Investigation into Protein Expression Patterns of FOXO4, IRF8 and LEF1 in Canine Osteosarcoma. Cancers (Basel) 2024; 16:1945. [PMID: 38792023 PMCID: PMC11120020 DOI: 10.3390/cancers16101945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/16/2024] [Accepted: 05/18/2024] [Indexed: 05/26/2024] Open
Abstract
Osteosarcoma (OSA) is the most common type of primary bone malignancy in people and dogs. Our previous molecular comparisons of canine OSA against healthy bone resulted in the identification of differentially expressed protein-expressing genes (forkhead box protein O4 (FOXO4), interferon regulatory factor 8 (IRF8), and lymphoid enhancer binding factor 1 (LEF1)). Immunohistochemistry (IHC) and H-scoring provided semi-quantitative assessment of nuclear and cytoplasmic staining alongside qualitative data to contextualise staining (n = 26 patients). FOXO4 was expressed predominantly in the cytoplasm with significantly lower nuclear H-scores. IRF8 H-scores ranged from 0 to 3 throughout the cohort in the nucleus and cytoplasm. LEF1 was expressed in all patients with significantly lower cytoplasmic staining compared to nuclear. No sex or anatomical location differences were observed. While reduced levels of FOXO4 might indicate malignancy, the weak or absent protein expression limits its primary use as diagnostic tumour marker. IRF8 and LEF1 have more potential for prognostic and diagnostic uses and facilitate further understanding of their roles within their respective molecular pathways, including Wnt/beta-catenin/LEF1 signalling and differential regulation of tumour suppressor genes. Deeper understanding of the mechanisms involved in OSA are essential contributions towards the development of novel diagnostic, prognostic, and treatment options in human and veterinary medicine contexts.
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Affiliation(s)
- Simone de Brot
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Comparative Pathology Platform of the University of Bern (COMPATH), Institute of Animal Pathology, University of Bern, 3012 Bern, Switzerland
| | - Jack Cobb
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Aziza A. Alibhai
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Jorja Jackson-Oxley
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Maria Haque
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Rodhan Patke
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Anna E. Harris
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Corinne L. Woodcock
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Jennifer Lothion-Roy
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Dhruvika Varun
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Rachel Thompson
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Claudia Gomes
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
| | - Valentina Kubale
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Mark D. Dunning
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Willows Veterinary Centre and Referral Service, Solihull B90 4NH, UK
| | - Jennie N. Jeyapalan
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Faculty of Medicine and Health Science, Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK
| | - Nigel P. Mongan
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Willows Veterinary Centre and Referral Service, Solihull B90 4NH, UK
- Department of Pharmacology, Weill Cornell Medicine, New York, NY 10075, USA
| | - Catrin S. Rutland
- School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, UK; (S.d.B.); (J.C.); (A.A.A.); (J.J.-O.); (M.H.); (R.P.); (A.E.H.); (C.L.W.); (J.L.-R.); (D.V.); (R.T.); (C.G.); (M.D.D.); (J.N.J.)
- Faculty of Medicine and Health Science, Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, UK
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Altwal J, Lee BI, Boss MK, LaRue SM, Martin TW. Outcomes of 35 dogs with craniomaxillofacial osteosarcoma treated with stereotactic body radiation therapy. Vet Comp Oncol 2024; 22:125-135. [PMID: 38246695 DOI: 10.1111/vco.12960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024]
Abstract
Canine craniomaxillofacial osteosarcoma (OSA) is most commonly treated surgically; however, in cases where surgery is not feasible or non-invasive treatment is desired, stereotactic body radiation therapy (SBRT) may be elected for local tumour control. In this study, we evaluated 35 dogs treated with SBRT. Nine dogs (26%) had calvarial, seven (20%) had mandibular and 19 (54%) had maxillary OSA. Median time to first event (TFE) was 171 days, and overall median survival time (MST) was 232 days. Site-specific MSTs were 144 days for mandible, 236 days for calvarium and 232 days for maxilla (p = .49). Pulmonary metastatic disease was observed in 12/35 (34%) patients and was detected pre-SBRT in six dogs (17%) and post-SBRT in the remaining six dogs (17%). Eighteen adverse events post-SBRT were documented. Per veterinary radiation therapy oncology group criteria, five were acute (14%) and three were late (9%) grade 3 events. Neurological signs in two dogs were suspected to be early-delayed effects. Cause of death was local progression for 22/35 (63%) patients, metastasis for 9/35 (26%) patients and unknown for four. On univariate analysis, administration of chemotherapy was associated with a longer TFE (p = .0163), whereas volume of gross tumour volume was associated with a shorter TFE (p = .023). Administration of chemotherapy and five fractions versus single fraction of SBRT was associated with increased survival time (p = .0021 and .049). Based on these findings, a treatment protocol incorporating chemotherapy and five fractions of SBRT could be considered for dogs with craniomaxillofacial OSA electing SBRT with careful consideration of normal tissues in the field.
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Affiliation(s)
- Johnny Altwal
- College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Ber-In Lee
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Mary-Keara Boss
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Susan M LaRue
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Tiffany Wormhoudt Martin
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
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Jeon JW, Kang KW, Kim WK, Yang S, Kang BJ. Cervical spine reconstruction after total vertebrectomy using customized three-dimensional-printed implants in dogs. J Vet Sci 2024; 25:e2. [PMID: 38311317 PMCID: PMC10839172 DOI: 10.4142/jvs.23241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/14/2023] [Accepted: 11/28/2023] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Sufficient surgical resection is necessary for effective tumor control, but is usually limited for vertebral tumors, especially in the cervical spine in small animal neurosurgery. OBJECTIVE To evaluate the primary stability and safety of customized three-dimensional (3D)-printed implants for cervical spine reconstruction after total vertebrectomy. METHODS Customized guides and implants were designed based on computed tomography (CT) imaging of five beagle cadavers and were 3D-printed. They were used to reconstruct C5 after total vertebrectomy. Postoperative CT images were obtained to evaluate the safety and accuracy of screw positioning. After harvesting 10 vertebral specimens (C3-C7) from intact (group A) and implanted spines (group B), implant stability was analyzed using a 4-point bending test comparing with groups A and C (reconstituted with plate and pins/polymethylmethacrylate after testing in Group A). RESULTS All customized implants were applied without gross neurovascular damage. In addition, 90% of the screws were in a safe area, with 7.5% in grade 1 (< 1.3 mm) and 2.5% in grade 2 (> 1.3 mm). The mean entry point and angular deviations were 0.81 ± 0.43 mm and 6.50 ± 5.11°, respectively. Groups B and C significantly decreased the range of motion (ROM) in C3-C7 compared with intact spines (p = 0.033, and 0.018). Both groups reduced overall ROM and neutral zone in C4-C6, but only group B showed significance (p = 0.005, and 0.027). CONCLUSION Customized 3D-printed implants could safely and accurately replace a cervical vertebra in dog cadavers while providing primary stability.
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Affiliation(s)
- Ji-Won Jeon
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - Kyu-Won Kang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - Woo-Keyoung Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
- BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Seoul National University, Seoul 08826, Korea
| | - Sook Yang
- CUSMEDI Co., Ltd., Suwon 16675, Korea
| | - Byung-Jae Kang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
- BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Seoul National University, Seoul 08826, Korea.
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Santifort KM, Beukers M, Roos A, van Rijswoud B, Meertens N, Peperkamp K, Ben-Amotz R, Bergknut N. Vertebral Osteosarcoma in Two Cats-Diagnosis, Treatment, and Outcome. Animals (Basel) 2023; 13:3478. [PMID: 38003096 PMCID: PMC10668841 DOI: 10.3390/ani13223478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/04/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
In this case report, we describe the diagnosis, treatment, and outcome of two feline cases of vertebral osteosarcoma. Case 1: A 6-year-old female neutered domestic longhaired cat was presented with progressive paraparesis, ataxia, and spinal hyperesthesia. MRI of the thoracolumbar spinal cord and vertebral column revealed a strongly contrast-enhancing mass lesion originating from the dorsal lamina and spinous process of T13. The lesion caused extradural compression of the spinal cord. Surgical debulking was performed, and the histopathological evaluation of surgical biopsies was consistent with vertebral osteosarcoma. The cat was paraplegic with intact nociception post-surgery. Subsequently, the cat recovered ambulation while remaining mildly ataxic and paraparetic at long-term follow-up. Post-operative chemotherapy was started with doxorubicin. CT scans at 2, 4, 9, 13, and 20 months post-surgery showed no signs of local recurrence or metastasis. Case 2: A 15.5-year-old male neutered domestic shorthaired cat was presented with progressive paraparesis, tail paresis, and spinal hyperesthesia. Radiographs and CT scan of the lumbar vertebral column showed a large mass originating from the dorsal lamina and spinous process of L6, suggestive of neoplasia, with severe compression of the spinal cord. Surgical debulking was performed, and the histopathological evaluation was consistent with vertebral osteosarcoma. Post-operative chemotherapy was started with doxorubicin. Seven months post-surgery, the patient was neurologically normal with no signs of metastatic disease. This case report highlights the possibility of good outcomes after the surgical treatment of feline vertebral osteosarcoma supplemented with post-surgical chemotherapy.
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Affiliation(s)
- Koen Maurits Santifort
- IVC Evidensia Small Animal Referral Hospital Arnhem, 6825 MB Arnhem, The Netherlands
- IVC Evidensia Small Animal Referral Hospital Hart van Brabant, 5144 AM Waalwijk, The Netherlands
| | - Martijn Beukers
- IVC Evidensia Small Animal Referral Hospital Hart van Brabant, 5144 AM Waalwijk, The Netherlands
| | - Arno Roos
- IVC Evidensia Small Animal Referral Hospital Nieuwegein, 3433 NP Nieuwegein, The Netherlands
| | - Benjamin van Rijswoud
- IVC Evidensia Small Animal Referral Hospital Arnhem, 6825 MB Arnhem, The Netherlands
- IVC Evidensia Small Animal Referral Hospital Hart van Brabant, 5144 AM Waalwijk, The Netherlands
| | - Nadine Meertens
- Department of Pathology, Royal GD, 7418 EZ Deventer, The Netherlands
| | - Klaas Peperkamp
- Department of Pathology, Royal GD, 7418 EZ Deventer, The Netherlands
| | - Ron Ben-Amotz
- IVC Evidensia Small Animal Referral Hospital Hart van Brabant, 5144 AM Waalwijk, The Netherlands
| | - Niklas Bergknut
- IVC Evidensia Small Animal Referral Hospital Hart van Brabant, 5144 AM Waalwijk, The Netherlands
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Thompson J, Malbon A, Hall JL. Curative‐intent minimal ostectomy for canine oral osteoma. VETERINARY RECORD CASE REPORTS 2022. [DOI: 10.1002/vrc2.463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jamie‐Leigh Thompson
- Small Animal Surgery Hospital for Small Animals The Royal Dick School of Veterinary Studies University of Edinburgh Easter Bush UK
| | - Alexandra Malbon
- Easter Bush Pathology Royal (Dick) School of Veterinary Studies and the Roslin Institute University of Edinburgh Roslin UK
| | - Jon L. Hall
- School of Veterinary Medicine and Science University of Nottingham Sutton Bonington UK
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Kouno S, Tanoue H, Shimada M, Hara Y. Aggressive piecemeal excision and cervical bridging fixation for cervical vertebral osteosarcoma in two dogs and two cats. VETERINARY RECORD CASE REPORTS 2022. [DOI: 10.1002/vrc2.431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shigenori Kouno
- Division of Veterinary Surgery Department of Veterinary Science, Faculty of Veterinary Medicine Nippon Veterinary and Life Science University Tokyo Japan
| | - Hirofumi Tanoue
- Division of Veterinary Surgery Department of Veterinary Science, Faculty of Veterinary Medicine Nippon Veterinary and Life Science University Tokyo Japan
| | - Masakazu Shimada
- Division of Veterinary Surgery Department of Veterinary Science, Faculty of Veterinary Medicine Nippon Veterinary and Life Science University Tokyo Japan
| | - Yasushi Hara
- Division of Veterinary Surgery Department of Veterinary Science, Faculty of Veterinary Medicine Nippon Veterinary and Life Science University Tokyo Japan
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Tam C, Hecht S, Mai W, Nelson N, Chen AV, Griffin JF. Cranial and vertebral osteosarcoma commonly has T2 signal heterogeneity, contrast enhancement, and osteolysis on MRI: A case series of 35 dogs. Vet Radiol Ultrasound 2022; 63:552-562. [PMID: 35452145 DOI: 10.1111/vru.13093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 11/28/2022] Open
Abstract
Magnetic resonance imaging (MRI) is commonly used to evaluate the central nervous system (CNS) in dogs; however, published studies describing the MRI appearance of cranial and vertebral osteosarcoma are scarce. In this multicenter, retrospective, case series study, MRI studies of 35 dogs with cranial or vertebral osteosarcoma were prospectively scored by consensus of two veterinary radiologists. Recorded characteristics were location, signal intensity (compared to gray matter), homogeneity, contrast enhancement, margin delineation, local invasion, osteolysis, osteosclerosis, zone of transition, periosteal proliferation, pathological fracture, meningeal/CNS involvement, and presence of metastatic disease. Locations included the parietal bone (n = 1), occipital bone (n = 2), or cervical (n = 5), thoracic (n = 17), lumbar (n = 7), or sacral vertebrae (n = 3). Common features included signal heterogeneity in T2-weighted (T2W) images (n = 35), contrast enhancement (in all 34 dogs with postcontrast MRI), osteolysis (n = 34), compression of the CNS or cauda equina (n = 33), an associated soft tissue mass (n = 33), a long zone of transition (n = 30), osteosclerosis (n = 28), signal isointensity to normal-appearing gray matter in T1-weighted images (T1W, n = 26), and T2W hyperintensity of adjacent brain or spinal cord (n = 23). Other findings included periosteal proliferation (n = 18), meningeal contrast enhancement (n = 17), T1W and T2W hypointense foci in the soft tissue mass (n = 14), invasion into adjacent bones (n = 10), pathological vertebral fractures (n = 7), regional lymphadenopathy (n = 6), skip metastases (n = 2), lung nodule (n = 1), diaphragmatic nodule (n = 1), and brain invasion (n = 1). Contrast enhancement was typically strong and heterogeneous. Magnetic resonance imaging features of cranial and vertebral osteosarcoma were analogous to those previously reported for other imaging modalities. Osteosarcoma should be a differential diagnosis for compressive, contrast-enhancing, osteolytic lesions of the cranium or vertebrae.
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Affiliation(s)
- Candace Tam
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Silke Hecht
- Department of Small Animal Clinical Sciences, University of Tennessee, Knoxville, Tennessee, USA
| | - Wilfried Mai
- Department of Clinical Sciences and Advanced Medicine, Section of Radiology, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
| | - Nathan Nelson
- Department of Molecular and Biomedical Sciences, North Carolina State University, Raleigh, North Carolina, USA
| | - Annie V Chen
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington, USA
| | - John F Griffin
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
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9
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Einwaller J, Esmieu S, Sanchez FV. Paraneoplastic hypertrophic osteopathy in a Great Dane with rib sarcoma. VETERINARY RECORD CASE REPORTS 2021. [DOI: 10.1002/vrc2.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Joy Einwaller
- Diagnostic Imaging Service Dick White Referrals Six Mile Bottom UK
- Internal Medicine Service Dick White Referrals Six Mile Bottom UK
| | - Shanti Esmieu
- Diagnostic Imaging Service Dick White Referrals Six Mile Bottom UK
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Shoaib Z, Fan TM, Irudayaraj J. Osteosarcoma mechanobiology and therapeutic targets. Br J Pharmacol 2021; 179:201-217. [PMID: 34679192 PMCID: PMC9305477 DOI: 10.1111/bph.15713] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/15/2021] [Accepted: 09/22/2021] [Indexed: 11/28/2022] Open
Abstract
Osteosarcoma (OS) is the one of the most common primary tumors of bone with less than a 20% 5-year survival rate after the development of metastases. OS is highly predisposed in Paget's disease (PD) of bone, and both have common characteristic skeletal features due to rapid bone remodeling. OS prognosis is location dependent which further emphasizes the likely contribution of the bone microenvironment in its pathogenesis. Mechanobiology is the phenomenon when mechanical cues from the changing physical microenvironment of bone are transduced to biological pathways through mechanosensitive cellular components. Mechanobiology-driven therapies have been used for curbing tumor progression by direct alteration of the physical microenvironment or inhibition of metastasis-associated mechanosensitive proteins. This review emphasizes the contribution of mechanobiology to OS progression, and sheds light on current mechanobiology-based therapies and potential new targets for improving disease management. Additionally, the variety of 3D models currently used to study OS mechanobiology are summarized.
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Affiliation(s)
- Zunaira Shoaib
- Department of Pathobiology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Timothy M Fan
- Department of Veterinary Clinical Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Joseph Irudayaraj
- Department of Bioengineering, Nick Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, IL, USA.,Biomedical Research Center, Carle Foundation Hospital, Urbana, IL, USA.,Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL, USA
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11
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Cook MR, Lorbach J, Husbands BD, Kisseberth WC, Samuels S, Silveira C, Wustefeld-Janssens BG, Wouda R, Keepman S, Oblak ML, Selmic LE. A retrospective analysis of 11 dogs with surface osteosarcoma. Vet Comp Oncol 2021; 20:82-90. [PMID: 34033204 DOI: 10.1111/vco.12741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/14/2021] [Accepted: 05/24/2021] [Indexed: 01/17/2023]
Abstract
While the majority of canine osteosarcomas (OSA) arise from the medullary cavity, a subset arises from the surface of bone. In humans, surface OSA often has a more indolent disease course with better outcomes than medullary OSA. The aim of this retrospective case series was to evaluate the clinical outcome and potential prognostic factors of dogs with surface OSA. Medical records from 11 dogs previously diagnosed with surface OSA were included. Histopathology of cases was evaluated during case review by two veterinary anatomic pathologists. Median progression free interval (PFI) and overall median survival time (OST) were estimated using Kaplan-Meier methods. Intergroup comparisons were performed using log-rank tests. Six dogs were diagnosed with periosteal OSA, 4 dogs with parosteal OSA, and one dog with an unclassified surface OSA. Two dogs were found to have metastatic disease at the time of diagnosis and four developed metastatic lesions after treatment. The median PFI and median OST for all dogs with surface OSA was 425 and 555 days, respectively. The 6 dogs diagnosed with periosteal OSA had a median PFI of 461 days and median OST of 555 days, while the 4 dogs with parosteal OSA had a PFI of 350 days and the OST could not be calculated. Multiple prognostic factors (surgery, systemic adjunctive therapy, elevated alkaline phosphatase at diagnosis, appendicular vs axial location, mitotic count, and tumour grade) were evaluated and none were prognostic for PFI or OST. Dogs with surface OSA appear to have prolonged PFI and OST, consistent with humans with surface OSA.
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Affiliation(s)
- Matthew R Cook
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Joshua Lorbach
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Brian D Husbands
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - William C Kisseberth
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Sarah Samuels
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Catrina Silveira
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Brandan G Wustefeld-Janssens
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Raelene Wouda
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
| | - Samuel Keepman
- Department of Clinical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, USA
| | - Michelle L Oblak
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Laura E Selmic
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
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12
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Silveira B, Cassali G, Lopes T. Osteosarcoma of the hard palate in a dog ˗ case report. ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-12085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The osteosarcoma (OSA) is the most diagnosed primary bone cancer in canine patients. This work reports a case of a canine, six years old, mongrel, female, intact, with an OSA in the hard palate. Physical examination detected a firm mass in the palate. Thoracic radiographs, hematological and biochemical exams, histopathological exams and computed tomography were requested. A chondroblastic OSA was diagnosed and the tumor was characterized by immunohistochemistry. There was never evidence of metastasis in this case. The treatment consisted of the combination of conventional chemotherapy, metronomic chemotherapy, and palliative care, aiming at greater survival and well-being of the patient since surgical excision was not possible due to the location and extension of the tumor. Osteogenic sarcomas of the hard palate are rarely seen and described in the literature. In this article we present a characterization of the osteosarcoma with uncommon localization in the hard palate.
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Affiliation(s)
| | | | - T.C.M. Lopes
- Universidade Presidente Antônio Carlos, Brazil; Universidade Federal de Minas Gerais, Brazil
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13
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Niemiec B, Gawor J, Nemec A, Clarke D, McLeod K, Tutt C, Gioso M, Steagall PV, Chandler M, Morgenegg G, Jouppi R. World Small Animal Veterinary Association Global Dental Guidelines. J Small Anim Pract 2020; 61:E36-E161. [PMID: 32715504 DOI: 10.1111/jsap.13132] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Dental, oral, and maxillofacial diseases are some of the most common problems in small animal veterinary practice. These conditions create significant pain as well as localized and potentially systemic infection. As such, the World Small Animal Veterinary Association (WSAVA) believes that un- and under treated oral and dental diseases pose a significant animal welfare concern. Dentistry is an area of veterinary medicine which is still widely ignored and is subject to many myths and misconceptions. Effective teaching of veterinary dentistry in the veterinary school is the key to progression in this field of veterinary medicine, and to the improvement of welfare for all our patients globally. These guidelines were developed to provide veterinarians with the information required to understand best practices for dental therapy and create realistic minimum standards of care. Using the three-tiered continuing education system of WSAVA, the guidelines make global equipment and therapeutic recommendations and highlight the anaesthetic and welfare requirements for small animal patients. This document contains information on common oral and dental pathologies, diagnostic procedures (an easily implementable and repeatable scoring system for dental health, dental radiography and radiology) and treatments (periodontal therapy, extractions). Further, there are sections on anaesthesia and pain management for dental procedures, home dental care, nutritional information, and recommendations on the role of the universities in improving veterinary dentistry. A discussion of the deleterious effects of anaesthesia free dentistry (AFD) is included, as this procedure is ineffective at best and damaging at worst. Throughout the document the negative effects of undiagnosed and/or treated dental disease on the health and well-being of our patients, and how this equates to an animal welfare issue, is discussed.
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14
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Tremolada G, Thamm DH, Milovancev M, Seguin B. Biological behaviour of primary osteosarcoma of the digits, metacarpal and metatarsal bones in dogs. Vet Comp Oncol 2020; 19:735-742. [PMID: 32893971 DOI: 10.1111/vco.12652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/21/2020] [Accepted: 09/02/2020] [Indexed: 11/27/2022]
Abstract
Osteosarcoma (OSA) arising from the digits, metatarsal and metacarpal bones is rare and may carry a better prognosis compared with other locations. The aim of this study was to retrospectively evaluate the biological behaviour, the progression free interval (PFI), the survival time (ST) and evaluate the effect of adjuvant chemotherapy for OSA affecting these bones. Medical records from two academic institutions were reviewed and 15 cases were included. Descriptive statistics were used for signalment and history. For estimation of median PFI and median ST, the Kaplan-Meier method was utilized. The prognostic effect of chemotherapy, lymphocyte and monocyte count was investigated. Log-rank analysis was used to compare PFI and ST between groups. The overall median PFI and median ST were 377 and 687 days, respectively. No significant differences were noted for any of the variables evaluated. In this study, dogs affected by OSA of digits, metacarpal and metatarsal bones appear to have a longer ST compared with dogs with OSA of other appendicular locations. A study with a larger number of patients is needed to confirm these results and investigate the potential benefit of adjuvant chemotherapy.
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Affiliation(s)
- Giovanni Tremolada
- Flint Animal Cancer Center, Colorado State University, Fort Collins, Colorado, USA
| | - Douglas H Thamm
- Flint Animal Cancer Center, Colorado State University, Fort Collins, Colorado, USA
| | - Milan Milovancev
- Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
| | - Bernard Seguin
- Flint Animal Cancer Center, Colorado State University, Fort Collins, Colorado, USA
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15
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Abstract
Many types of tumorous and tumour-like lesions occur in the oral cavity of dogs. Even benign neoplasia often represents great inconvenience due to potential restrictions of therapeutic surgical approach in this area. Whereas in human medicine, there are statistical data describing areas of the oral cavity, that are more prevalent for development of particular neoplasia, in veterinary medicine, these data are not yet available. The aim of this study was to evaluate the prevalence of tumours in dogs with oral neoplasia, the occurrence site of the most common neoplastic lesions in the canine oral cavity, as well as the effect of age and sex on the prevalence of these lesions. In this study we investigated oral tumorous lesions from 659 dogs, out of which 352 lesions were diagnosed as tumours and 307 as tumour-like lesions. The most common tumours encountered were melanoma (42%, n = 148), squamous cell carcinoma (16%, n = 57) and canine acanthomatous ameloblastoma (10%, n = 35). The median age of dogs with oral neoplasia was 9.9 years, with the range of 0.2 to 17.5 years. There was no significant association between sex and the type of oral lesion (tumorous and tumour-like). Melanoma was most commonly present in the caudal maxillary region, squamous cell carcinoma on the mouth floor, canine acanthomatous ameloblastoma in the area of the rostral mandible, plasmacytoma on the tongue, osteosarcoma was most often diagnosed in the caudal parts of oral cavity and fibrosarcoma did not have a specific site of occurrence.
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16
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Evaluation of canonical Hedgehog signaling pathway inhibition in canine osteosarcoma. PLoS One 2020; 15:e0231762. [PMID: 32348319 PMCID: PMC7190150 DOI: 10.1371/journal.pone.0231762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 04/01/2020] [Indexed: 01/20/2023] Open
Abstract
Canine osteosarcoma (OSA), the most common canine primary bone malignancy, has a highly aggressive biologic behavior. Despite current standard of care therapies, including amputation and adjuvant chemotherapy, most dogs still succumb to metastatic disease. Further investigations into molecular mechanisms and pathways driving OSA are needed to improve therapeutic options. The Hedgehog (HH) cell-signaling pathway has demonstrated involvement in human OSA. Several studies in canine OSA have found changes in expression of some HH pathway genes and demonstrated a role for HH transcription factors. However, the role of this pathway as well as the translational value of its targeting in canine OSA are still undefined. The objectives of this study were to determine the expression of HH components directly in canine OSA tissues and to evaluate the biologic impact of HH signaling inhibition in canine OSA cells. In situ hybridization was used to detect HH family mRNA expression in archived canine OSA tissues and revealed variable expression levels of these mRNAs in canine OSA tissues. The effect of a commercially available Smoothened inhibitor, vismodegib, was studied in established canine OSA cell lines. Alterations in cellular growth as well as assessment of downstream HH targets were evaluated. Although changes in cell growth were noted following Smoothened inhibition, inconsistent decreases in target gene expression were found. While treatment with vismodegib had a negative impact on canine OSA cell growth and viability, the mechanism remains unclear. Further studies are warranted to evaluate the clinical significance of canonical HH signaling in canine OSA.
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17
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Galloway A, Lana S, Thamm D, Boss K. Outcome and Metastatic Behavior of Canine Sinonasal Osteosarcoma (2005-2015). J Am Anim Hosp Assoc 2020; 56:98-105. [PMID: 31961217 DOI: 10.5326/jaaha-ms-6972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Sinonasal neoplasms in dogs behave locally aggressively, and metastatic disease has not been a common cause of death. The metastatic rate of sinonasal osteosarcoma (OSA) is not well characterized, and reported outcomes of these patients are variable. The purpose of this study is to evaluate the outcome and metastatic behavior of canine sinonasal OSA. Medical records of canine patients diagnosed with sinonasal OSA via histopathology between January 2005 and December 2015 were reviewed. Patients with any form of treatment or no treatment were included. Time to local progression, time to metastasis, and overall survival data were evaluated. Variables that may impact outcome, such as tumor stage and treatment type, were evaluated. Twenty-seven dogs were identified that fit the inclusion criteria. Overall, 30.0% of dogs developed metastasis over the disease course, with a median time to metastasis of 458 days (95% confidence interval [CI] 318-758 days). The median time to local progression was 335 days (95% CI 264-544 days). The overall median survival time was 410 days (95% CI 341-627 days). Regarding metastasis, sinonasal OSA behaves similarly to sinonasal neoplasms of other histologies and dissimilarly to appendicular OSA. The outcome of treated patients appears similar to that of sinonasal tumor patients with other histologies.
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Affiliation(s)
- Annie Galloway
- From the Department of Clinical Sciences (A.G., S.L., D.T.) and Department of Environmental and Radiological Health Sciences (K.B.), College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Susan Lana
- From the Department of Clinical Sciences (A.G., S.L., D.T.) and Department of Environmental and Radiological Health Sciences (K.B.), College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Doug Thamm
- From the Department of Clinical Sciences (A.G., S.L., D.T.) and Department of Environmental and Radiological Health Sciences (K.B.), College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Keara Boss
- From the Department of Clinical Sciences (A.G., S.L., D.T.) and Department of Environmental and Radiological Health Sciences (K.B.), College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
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18
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Oramas A, Boston SE, Skinner OT. Iliectomy with limb preservation for a dog with ilial osteosarcoma: Surgical description and case report. Vet Surg 2019; 49:607-613. [PMID: 31605496 DOI: 10.1111/vsu.13329] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 08/27/2019] [Accepted: 09/07/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To report the surgical technique for iliectomy and outcome in a single clinical case. STUDY DESIGN Case report. ANIMAL A 10-year-old female spayed Rottweiler. METHODS A dog presented with left pelvic limb lameness due to a mass involving the left ilium. Fine needle aspirates were indicative of a sarcoma and suspicious for osteosarcoma. Computed tomography of thorax, abdomen, and pelvis was performed as well as skeletal scintigraphy, with no evidence of metastasis seen. The dog underwent iliectomy with preservation of the ipsilateral limb and was ambulatory 24 hours after surgery. Results of histopathology confirmed the diagnosis of an osteosarcoma. RESULTS A right ischial fracture was noted 8 days postoperatively and was conservatively managed. Local recurrence was reported 385 days postoperatively, with no overt metastatic disease revealed by computed tomography of the thorax and abdomen. The dog was euthanized because of local recurrence 430 days after surgery. CONCLUSION Iliectomy was well tolerated in this dog and afforded good function of the pelvic limbs. Local recurrence developed with no evidence of metastasis at the last follow-up. Iliectomy can be considered for a mass confined to the ilium when preservation of the limb is desired. Additional studies are required to determine the local recurrence and complication rates associated with this procedure in dogs with axial skeletal osteosarcoma. CLINICAL SIGNIFICANCE To the authors' knowledge, this case report represents the fist surgical description and clinical outcome for an iliectomy in dogs.
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Affiliation(s)
- Alberto Oramas
- University of Florida Small Animal Hospital, Gainesville, Florida
| | | | - Owen T Skinner
- University of Missouri Veterinary Health Center, Columbia, Missouri
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19
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Castillo-Tandazo W, Mutsaers AJ, Walkley CR. Osteosarcoma in the Post Genome Era: Preclinical Models and Approaches to Identify Tractable Therapeutic Targets. Curr Osteoporos Rep 2019; 17:343-352. [PMID: 31529263 DOI: 10.1007/s11914-019-00534-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
PURPOSE OF REVIEW Osteosarcoma (OS) is the most common cancer of bone, yet is classified as a rare cancer. Treatment and outcomes for OS have not substantively changed in several decades. While the decoding of the OS genome greatly advanced the understanding of the mutational landscape of OS, immediately actionable therapeutic targets were not apparent. Here we describe recent preclinical models that can be leveraged to identify, test, and prioritize therapeutic candidates. RECENT FINDINGS The generation of multiple high fidelity murine models of OS, the spontaneous disease that arises in pet dogs, and the establishment of a diverse collection of patient-derived OS xenografts provide a robust preclinical platform for OS. These models enable evidence to be accumulated across multiple stages of preclinical evaluation. Chemical and genetic screening has identified therapeutic targets, often demonstrating cross species activity. Clinical trials in both PDX models and in canine OS have effectively tested new therapies for prioritization. Improving clinical outcomes in OS has proven elusive. The integrated target discovery and testing possible through a cross species platform provides validation of a putative target and may enable the rigorous evaluation of new therapies in models where endpoints can be rapidly assessed.
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Affiliation(s)
- Wilson Castillo-Tandazo
- St. Vincent's Institute, 9 Princes St, Fitzroy, VIC, 3065, Australia
- Department of Medicine, St. Vincent's Hospital, University of Melbourne, Fitzroy, VIC, 3065, Australia
| | - Anthony J Mutsaers
- Department of Biomedical Sciences, Ontario Veterinary College, Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Canada.
| | - Carl R Walkley
- St. Vincent's Institute, 9 Princes St, Fitzroy, VIC, 3065, Australia.
- Department of Medicine, St. Vincent's Hospital, University of Melbourne, Fitzroy, VIC, 3065, Australia.
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, VIC, 3000, Australia.
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20
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Mejia S, Iodence A, Griffin L, Withrow S, Puttlitz C, Salman M, Seguin B. Comparison of cross-sectional geometrical properties and bone density of the proximal radius between Saint Bernard and other giant breed dogs. Vet Surg 2019; 48:947-955. [PMID: 31236987 DOI: 10.1111/vsu.13276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 04/30/2019] [Accepted: 06/01/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To compare the geometrical properties and bone mineral density (BMD) of the proximal radius between Saint Bernard and other giant breed dogs. STUDY DESIGN Observational, cross-sectional, descriptive study. ANIMALS Thirteen client-owned Saint Bernard dogs and 13 other client-owned giant breed dogs. METHODS Computed tomography (CT) studies of Saint Bernard and other giant breed dogs were reviewed. Multiplanar reconstruction of the CT images was used to determine cross-sectional variables at the proximal half of the radius, including mean cortical thickness (mCT) and moment of inertia (MOI). Cortical BMD was estimated from Hounsfield unit measurements at each cross-section and averaged per bone. One-way analysis of variance was used to detect differences between groups. RESULTS Proximal radii of Saint Bernard dogs had a lower cortical/medullary ratio (1.75 vs 2.2, P < .001), mCT (1.96 vs 2.64 mm, P < .001), and MOI in all planes (mediolateral [ML]: 2086.09 vs 2757.69 mm4 , P < .001; craniocaudal [CrCd]: 3736.36 vs 4370.28 mm4 , P = .025; and polar: 5852.45 vs 7127.97 mm4 , P = .002) compared with bones of other breeds. Cross-sectional BMD did not differ between groups of dogs, but the mean BMD of all cross-sections was lower in Saint Bernard dogs (1214.27 vs 1289.80 mg/mm3 , P = .029). CONCLUSION The proximal radii of Saint Bernard dogs had thinner cortices and lower CrCd, ML, and polar MOI compared with corresponding bones in giant breed dogs. CLINICAL SIGNIFICANCE The structural properties of the proximal radius of the Saint Bernard differ from those in other giant breeds and could reduce the ability of this region to sustain biomechanical loads. These properties could predispose Saint Bernard dogs to complications after surgical limb-sparing procedures.
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Affiliation(s)
- Sebastian Mejia
- Department of Clinical Sciences, James L. Voss Veterinary Teaching Hospital, Colorado State University, Fort Collins, Colorado
| | - Ashley Iodence
- Department of Clinical Sciences, James L. Voss Veterinary Teaching Hospital, Colorado State University, Fort Collins, Colorado
| | - Lynn Griffin
- Department of Environmental and Radiological Health Sciences, College of Veterinary and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Stephen Withrow
- Department of Clinical Sciences, James L. Voss Veterinary Teaching Hospital, Colorado State University, Fort Collins, Colorado
| | - Christian Puttlitz
- Department of Mechanical Engineering, School of Biomedical Engineering, Colorado State University, Fort Collins, Colorado
| | - Mo Salman
- Department of Clinical Sciences, James L. Voss Veterinary Teaching Hospital, Colorado State University, Fort Collins, Colorado
| | - Bernard Seguin
- Department of Clinical Sciences, James L. Voss Veterinary Teaching Hospital, Colorado State University, Fort Collins, Colorado
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21
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Dixon A, Chen A, Rossmeisl JH, Sturges B, Vernau K, Levine JM, Otamendi A, Early P, Partnow A, Curtis L, Thomovsky S, Packer RA, Mauler DA. Surgical decompression, with or without adjunctive therapy, for palliative treatment of primary vertebral osteosarcoma in dogs. Vet Comp Oncol 2019; 17:472-478. [PMID: 31099165 DOI: 10.1111/vco.12508] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 11/28/2022]
Abstract
Vertebral osteosarcoma (OSA) is the most common primary vertebral tumor in dogs, however studies examining the survival time after surgical decompression of these tumors are limited. There is also limited information regarding the benefit of adjunctive treatments such as radiation therapy or chemotherapy in these patients. The goal of this study was to determine survival time of dogs with primary vertebral OSA after palliative decompressive surgery alone and combined with radiation therapy and/or chemotherapy. Records from 22 client-owned dogs diagnosed with primary vertebral OSA and treated with decompressive surgery were collected retrospectively from eight referral institutions. Survival time was assessed for dogs treated with surgery alone as well as dogs who received adjunctive radiation therapy and/or chemotherapy. Median survival time in the 12 dogs treated with surgery alone was 42 days (range: 3-1333 days). The three dogs treated with surgery and chemotherapy had a median survival time of 82 days (range: 56-305 days). Only one dog was treated with surgery and radiation therapy; this dog survived 101 days. Six dogs were treated with surgery, radiation therapy and chemotherapy; these dogs had a median survival time of 261 days (range: 223-653 days). Cause of death in all cases that survived the initial postoperative period was euthanasia secondary to confirmed or suspected tumor regrowth. The results of this study suggest that definitive radiation therapy, possibly combined with concurrent chemotherapy, significantly improves survival in dogs treated with palliative decompressive surgery for vertebral OSA and should be the treatment of choice in selected cases.
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Affiliation(s)
- Alexandra Dixon
- Department of Veterinary Clinical Sciences, Washington State University College of Veterinary Medicine, Pullman, Washington
| | - Annie Chen
- Department of Veterinary Clinical Sciences, Washington State University College of Veterinary Medicine, Pullman, Washington
| | - John H Rossmeisl
- Department of Small Animal Clinical Sciences, Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia
| | - Beverly Sturges
- Department of Surgical and Radiological Sciences, University of California Davis School of Veterinary Medicine, Davis, California
| | - Karen Vernau
- Department of Surgical and Radiological Sciences, University of California Davis School of Veterinary Medicine, Davis, California
| | - Jonathan M Levine
- Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine, College Station, Texas
| | - Arturo Otamendi
- Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine, College Station, Texas
| | - Peter Early
- Department of Clinical Sciences, North Carolina State University College of Veterinary Medicine, Raleigh, North Carolina
| | - Alix Partnow
- Department of Surgical Neurology, Veterinary Specialty Center of Seattle, Lynnwood, Washington
| | - Lara Curtis
- Department of Surgical Neurology, Veterinary Specialty Center of Seattle, Lynnwood, Washington
| | - Stephanie Thomovsky
- Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, Indiana
| | - Rebecca A Packer
- Department of Clinical Sciences, Colorado State University College of Veterinary Medicine and Biomedical Sciences, Fort Collins, Colorado
| | - Daniela A Mauler
- Department of Veterinary Medicine and Surgery, University of Missouri College of Veterinary Medicine, Columbia, Missouri
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22
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Diessner BJ, Marko TA, Scott RM, Eckert AL, Stuebner KM, Hohenhaus AE, Selting KA, Largaespada DA, Modiano JF, Spector LG. A comparison of risk factors for metastasis at diagnosis in humans and dogs with osteosarcoma. Cancer Med 2019; 8:3216-3226. [PMID: 31006987 PMCID: PMC6558582 DOI: 10.1002/cam4.2177] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/28/2019] [Accepted: 04/04/2019] [Indexed: 12/13/2022] Open
Abstract
Background Canine osteosarcoma (OS) is a relevant spontaneous model for human OS. Identifying similarities in clinical characteristics associated with metastasis at diagnosis in both species may substantiate research aimed at using canine OS as a model for identifying mechanisms driving distant spread in the human disease. Methods This retrospective study included dog OS cases from three academic veterinary hospitals and human OS cases from the Surveillance, Epidemiology, and End Results program. Associations between clinical factors and metastasis at diagnosis were estimated using logistic regression models. Results In humans, those with trunk tumors had higher odds of metastasis at diagnosis compared to those with lower limb tumors (OR = 2.38, 95% CI: 1.51, 3.69). A similar observation was seen in dogs with trunk tumors compared to dogs with forelimb tumors (OR = 3.28, 95% CI 1.36, 7.50). Other associations were observed in humans but not in dogs. Humans aged 20‐29 years had lower odds of metastasis at diagnosis compared to those aged 10‐14 years (OR = 0.67, 95% CI: 0.47, 0.96); every 1‐cm increase in tumor size was associated with a 6% increase in the odds of metastasis at diagnosis (95% CI: 1.04, 1.08); compared to those with a white, non‐Hispanic race, higher odds were observed among those with a black, non‐Hispanic race (OR: 1.51, 95% CI: 1.04, 2.16), and those with a Hispanic origin (OR 1.35, 95% CI: 1.00, 1.81). Conclusion A common mechanism may be driving trunk tumors to progress to detectable metastasis prior to diagnosis in both species.
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Affiliation(s)
- Brandon J Diessner
- Division of Pediatric Epidemiology and Clinical Research, School of Medicine, University of Minnesota, Minneapolis, Minnesota.,Department of Pediatrics, School of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Tracy A Marko
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Ruth M Scott
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota.,Animal Cancer Care and Research Program, University of Minnesota, St Paul, Minnesota
| | - Andrea L Eckert
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota.,Animal Cancer Care and Research Program, University of Minnesota, St Paul, Minnesota
| | - Kathleen M Stuebner
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota.,Animal Cancer Care and Research Program, University of Minnesota, St Paul, Minnesota
| | | | - Kim A Selting
- Veterinary Medical Teaching Hospital, University of Missouri, Columbia, Missouri
| | - David A Largaespada
- Department of Pediatrics, School of Medicine, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota.,Animal Cancer Care and Research Program, University of Minnesota, St Paul, Minnesota
| | - Jaime F Modiano
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota.,Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, Minnesota.,Animal Cancer Care and Research Program, University of Minnesota, St Paul, Minnesota.,Center for Immunology, University of Minnesota, Minneapolis, Minnesota.,Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota.,Institute for Engineering in Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Logan G Spector
- Division of Pediatric Epidemiology and Clinical Research, School of Medicine, University of Minnesota, Minneapolis, Minnesota.,Department of Pediatrics, School of Medicine, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota.,Animal Cancer Care and Research Program, University of Minnesota, St Paul, Minnesota
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23
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Hansen KS, Kent MS. Imaging in Non-neurologic Oncologic Treatment Planning of the Head and Neck. Front Vet Sci 2019; 6:90. [PMID: 30984771 PMCID: PMC6448413 DOI: 10.3389/fvets.2019.00090] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 03/06/2019] [Indexed: 12/26/2022] Open
Abstract
Imaging is critical for the diagnosis and staging of veterinary oncology patients. Although cytology or biopsy is generally required for diagnosis, imaging characteristics inform the likelihood of a cancer diagnosis, can result in a prioritized list of differentials that guide further staging tests, and assist in the planning of surgery, radiation, and chemotherapy options. Advanced imaging, such as CT and MRI, can better define the extent of disease for surgical and radiation planning for head and neck cancer cases in particular. Additionally, new imaging technologies are continually being translated into veterinary fields, and they may provide more options for cancer patients as they become more widely available.
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Affiliation(s)
- Katherine S Hansen
- Department of Surgical and Radiological Sciences, UC Davis School of Veterinary Medicine, Davis, CA, United States
| | - Michael S Kent
- Department of Surgical and Radiological Sciences, UC Davis School of Veterinary Medicine, Davis, CA, United States
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24
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Hall JL, Mason SL. Limb sparing achieved by ray amputation for osteosarcoma of the left third metacarpal bone in a labrador. VETERINARY RECORD CASE REPORTS 2019. [DOI: 10.1136/vetreccr-2018-000752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Jon L Hall
- Department of Veterinary MedicineUniversity of Edinburgh Royal Dick School of Veterinary StudiesEdinburghUK
| | - Sarah L Mason
- Department of OncologySouthfields Veterinary SpecialistsBasildonUK
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25
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Park KM, Armstrong JF, Ruby JL, Barber RM, Grimes JA, Kent M. What Is Your Neurologic Diagnosis? J Am Vet Med Assoc 2018; 253:1253-1257. [PMID: 30398414 DOI: 10.2460/javma.253.10.1253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
Pet dogs are becoming increasingly recognized as a population with the potential to inform medical research through their treatment for a variety of maladies by veterinary health professionals. This is the basis of the One Health initiative, supporting the idea of collaboration between human and animal health researchers and clinicians to study spontaneous disease processes and treatment in animals to inform human health. Cancer is a major health burden in pet dogs, accounting for approximately 30% of deaths across breeds. As such, pet dogs with cancer are becoming increasingly recognized as a resource for studying the pharmacology and therapeutic potential of anticancer drugs and therapies under development. This was recently highlighted by a National Academy of Medicine Workshop on Comparative Oncology that took place in mid-2015 (http://www.nap.edu/21830). One component of cancer burden in dogs is their significantly higher incidence of sarcomas as compared to humans. This increased incidence led to canine osteosarcoma being an important component in the development of surgical approaches for osteosarcoma in children. Included in this review of sarcomas in dogs is a description of the incidence, pathology, molecular characteristics and previous translational therapeutic studies associated with these tumors. An understanding of the patho-physiological and molecular characteristics of these naturally occurring canine sarcomas holds great promise for effective incorporation into drug development schemas, for evaluation of target modulation or other pharmacodynamic measures associated with therapeutic response. These data could serve to supplement other preclinical data and bolster clinical investigations in tumor types for which there is a paucity of human patients for clinical trials.
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Affiliation(s)
- Daniel L Gustafson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; Flint Animal Cancer Center, Colorado State University, Fort Collins, CO 80523, USA; University of Colorado Cancer Center, Anschutz Medical Campus, Aurora, CO 80045, USA.
| | - Dawn L Duval
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; Flint Animal Cancer Center, Colorado State University, Fort Collins, CO 80523, USA; University of Colorado Cancer Center, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Daniel P Regan
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; Flint Animal Cancer Center, Colorado State University, Fort Collins, CO 80523, USA; University of Colorado Cancer Center, Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Douglas H Thamm
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA; Flint Animal Cancer Center, Colorado State University, Fort Collins, CO 80523, USA; University of Colorado Cancer Center, Anschutz Medical Campus, Aurora, CO 80045, USA
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27
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Wingo K. Histopathologic Diagnoses From Biopsies of the Oral Cavity in 403 Dogs and 73 Cats. J Vet Dent 2018; 35:7-17. [DOI: 10.1177/0898756418759760] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This retrospective study documents the prevalence of various histopathological diagnoses within a practice specializing in veterinary dentistry and oral surgery. Histopathology results obtained from biopsies of oral lesions from 403 dogs and 73 cats were sorted and categorized. Lesions of inflammatory origin represented the most common histopathology result in cats (n = 37; 51%), followed by squamous cell carcinoma (n = 27; 37%). The most common histopathological diagnoses in dogs were malignant neoplasms (n = 151; 37%), followed by tumors of odontogenic origin (n = 138, 34%) and lesions of inflammatory origin (n = 114; 28%). The results of this study are representative of a private referral dentistry practice and are compared to other studies that assessed common oral neoplasia diagnoses in dogs and cats. Treatment options and prognoses of the most common canine and feline neoplasms are discussed.
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Affiliation(s)
- Kipp Wingo
- Arizona Veterinary Dental Specialists, Phoenix, AZ, USA
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28
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Swift KE, LaRue SM. Outcome of 9 dogs treated with stereotactic radiation therapy for primary or metastatic vertebral osteosarcoma. Vet Comp Oncol 2017; 16:E152-E158. [DOI: 10.1111/vco.12362] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 09/21/2017] [Accepted: 09/22/2017] [Indexed: 01/07/2023]
Affiliation(s)
- K. E. Swift
- Department of Environmental and Radiological Health Sciences; Colorado State University; Fort Collins Colorado
| | - S. M. LaRue
- Department of Environmental and Radiological Health Sciences; Colorado State University; Fort Collins Colorado
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29
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Leeper H, Viall A, Ruaux C, Bracha S. Preliminary evaluation of serum total cholesterol concentrations in dogs with osteosarcoma. J Small Anim Pract 2017; 58:562-569. [PMID: 28660727 DOI: 10.1111/jsap.12702] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 04/15/2017] [Accepted: 04/20/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To determine if total serum cholesterol concentrations were altered in dogs with osteosarcoma. To evaluate association of total serum cholesterol concentration with clinical outcomes in dogs with appendicular osteosarcoma. MATERIALS AND METHODS Retrospective, multi-institutional study on 64 dogs with osteosarcoma. Control population consisted of dogs with traumatic bone fractures (n=30) and healthy patients of similar age and weight as those of the osteosarcoma cases (n=31). Survival analysis was done on 35 appendicular osteosarcoma patients that received the current standard of care. Statistical associations were assessed by univariable and multi-variable analysis. Information about age, sex, primary tumour location, total cholesterol concentration, monocytes and lymphocyte counts and alkaline phosphatase were also included. RESULTS Total cholesterol was elevated above the reference interval (3·89 to 7·12 mmol/L) (150 to 275 mg/dL) in 29 of 64 (45·3%) osteosarcoma-bearing dogs, whereas similar elevations were found in only 3 of 30 (10%) fracture controls (P<0·0001) and 2 of 31 (6·5%) similar age/weight controls (P=0·0002). Elevated total cholesterol was significantly associated with a reduced hazard ratio (0·27, P=0·008) for overall mortality in dogs with osteosarcoma. CLINICAL SIGNIFICANCE These results suggest that elevated total cholesterol is associated with canine osteosarcoma and may have prognostic significance.
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Affiliation(s)
- H Leeper
- Veterinary Clinical Sciences, Oregon State University, 700 SW 30th Street, Corvallis, Oregon, 97331-4801, USA
| | - A Viall
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, 1800 Christensen Drive, Ames, Iowa, 50011-1134, USA
| | - C Ruaux
- Veterinary Clinical Sciences, Oregon State University, 700 SW 30th Street, Corvallis, Oregon, 97331-4801, USA
| | - S Bracha
- Veterinary Clinical Sciences, Oregon State University, 700 SW 30th Street, Corvallis, Oregon, 97331-4801, USA
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30
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Besalti O, Caliskan M, Can P, Vural SA, Algin O, Ahlat O. Imaging and surgical outcomes of spinal tumors in 18 dogs and one cat. J Vet Sci 2017; 17:225-34. [PMID: 26645333 PMCID: PMC4921671 DOI: 10.4142/jvs.2016.17.2.225] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 09/15/2015] [Accepted: 10/07/2015] [Indexed: 11/20/2022] Open
Abstract
Clinical and magnetic resonance imaging (MRI) findings, histological appearances and surgical outcomes of 18 dogs and one cat with spinal tumors are presented. Medical records of the cases admitted for spinal disorders were reviewed, and cases of spinal tumors that were diagnosed by MRI and confirmed by histological examination were included in this study. T1 weighted, T2 weighted and contrast enhanced T1 weighted images were taken and interpreted to evaluate the spinal tumors. The tumors were diagnosed as: meningioma (n = 6), ependymoma (n = 1), nerve sheath tumor (n = 4), metastatic spinal tumor (n = 3), osteosarcoma (n = 2), osteoma (n = 1), rhabdomyosarcoma (n = 1), and nephroblastoma (n = 1). Thirteen cases underwent surgical operation and the remaining six cases were euthanized at the request of the owners. The neurological status of the surgical cases did not deteriorate, except for one dog that showed ependymoma in the early period after the operation. These results indicate the potential for surgical gross total tumor removal of vertebral tumors to provide better quality of life and surgical collection of histological specimens for definitive diagnosis. For effective case management, dedicated MRI examination is important to accurate evaluation of the spinal tumors, and surgical treatment is useful for extradural and intradural-extramedullary spinal tumors.
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Affiliation(s)
- Omer Besalti
- Department of Surgery, Faculty of Veterinary Medicine, Ankara University, Ankara 06110, Turkey
| | - Murat Caliskan
- Department of Surgery, Faculty of Veterinary Medicine, Ankara University, Ankara 06110, Turkey
| | - Pinar Can
- Department of Surgery, Faculty of Veterinary Medicine, Ankara University, Ankara 06110, Turkey
| | - Sevil Atalay Vural
- Department of Pathology, Faculty of Veterinary Medicine, Ankara University, Ankara 06110, Turkey
| | - Oktay Algin
- Radiology Department, Ataturk Training and Research Hospital, Ankara 06800, Turkey
| | - Ozan Ahlat
- Department of Pathology, Faculty of Veterinary Medicine, Ankara University, Ankara 06110, Turkey
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Mesquita L, Mortier J, Ressel L, Finotello R, Silvestrini P, Piviani M. Neoplastic pleural effusion and intrathoracic metastasis of a scapular osteosarcoma in a dog: a multidisciplinary integrated diagnostic approach. Vet Clin Pathol 2017; 46:337-343. [DOI: 10.1111/vcp.12474] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Luis Mesquita
- Department of Small Animal Clinical Science; Institute of Veterinary Science; University of Liverpool; Neston UK
| | - Jeremy Mortier
- Department of Small Animal Clinical Science; Institute of Veterinary Science; University of Liverpool; Neston UK
| | - Lorenzo Ressel
- Department of Veterinary Pathology and Public Health; Institute of Veterinary Science; University of Liverpool; Neston UK
| | - Riccardo Finotello
- Department of Small Animal Clinical Science; Institute of Veterinary Science; University of Liverpool; Neston UK
| | - Paolo Silvestrini
- Department of Small Animal Clinical Science; Institute of Veterinary Science; University of Liverpool; Neston UK
| | - Martina Piviani
- Department of Small Animal Clinical Science; Institute of Veterinary Science; University of Liverpool; Neston UK
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32
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Deards EL. What Is Your Neurologic Diagnosis? J Am Vet Med Assoc 2016; 249:1253-1256. [PMID: 27875081 DOI: 10.2460/javma.249.11.1253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Parzefall B, De Decker S, Carvalho S, Terry R, Leach J, Smith KC, Lara-Garcia A. Axial Multicentric Osteosarcoma in an English Cocker Spaniel. J Vet Intern Med 2016; 30:1720-1725. [PMID: 27519845 PMCID: PMC5032862 DOI: 10.1111/jvim.14555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/01/2016] [Accepted: 07/05/2016] [Indexed: 11/27/2022] Open
Affiliation(s)
- B Parzefall
- Department of Clinical Science and Services, Royal Veterinary College, University of London, Hatfield, UK
| | - S De Decker
- Department of Clinical Science and Services, Royal Veterinary College, University of London, Hatfield, UK
| | - S Carvalho
- Department of Clinical Science and Services, Royal Veterinary College, University of London, Hatfield, UK
| | - R Terry
- Department of Pathology and Pathogen Biology, Royal Veterinary College, University of London, Hatfield, UK
| | - J Leach
- Veterinary Diagnostic Services, School of Veterinary Medicine, University of Glasgow, Glasgow, UK
| | - K C Smith
- Department of Pathology and Pathogen Biology, Royal Veterinary College, University of London, Hatfield, UK
| | - A Lara-Garcia
- Department of Clinical Science and Services, Royal Veterinary College, University of London, Hatfield, UK.
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34
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Burton AG, Johnson EG, Vernau W, Murphy BG. Implant-associated neoplasia in dogs: 16 cases (1983-2013). J Am Vet Med Assoc 2016; 247:778-85. [PMID: 26383754 DOI: 10.2460/javma.247.7.778] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To characterize clinical and pathological features of implant-associated neoplasms in dogs. DESIGN Retrospective case-control study. ANIMALS 16 dogs with implant-associated neoplasia and 32 control dogs with osteosarcoma without implants. Procedures: Medical records of dogs with tumors associated with metallic implants (cases) treated between 1983 and 2013 were reviewed. Two dogs with naturally occurring osteosarcoma (controls) were matched to each case on the basis of tumor location, age, and sex. RESULTS Median time from implant placement to diagnosis of neoplasia was 5.5 years (range, 9 months to 10 years). Pelvic limbs were most frequently affected, including the tibia (8/16) and femur (5/16), with 1 neoplasm involving both the femur and pelvis. Implant: associated tumors most commonly affected the diaphysis (15/16), with osteosarcomas significantly more likely to involve the long bone diaphysis in case dogs than in control dogs with naturally occurring osteosarcomas. Osteosarcoma was the most common tumor, accounting for 13 of 16 implant-associated tumors. For 7 of these osteosarcoma cases, review of histopathology results enabled subclassification into osteoblastic nonproductive (n = 3), chondroblastic (2), osteoblastic productive (1), and fibroblastic (1) groups. Three case dogs had a diagnosis of histiocytic sarcoma, fibrosarcoma, and spindle cell sarcoma. CONCLUSIONS AND CLINICAL RELEVANCE Results of this study highlighted important anatomic differences between spontaneous and implant-associated neoplasia in dogs.
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35
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Mouser P, Cole A, Lin TL. Maxillary Osteosarcoma in a Prairie Dog (Cynomys Ludovicianus). J Vet Diagn Invest 2016; 18:310-2. [PMID: 16789726 DOI: 10.1177/104063870601800317] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
To date, few tumors have been identified in prairie dogs, with odontoma being the most common. Osteosarcoma has been documented in a wide range of species, including a number of rodents. In this case, a locally invasive maxillary osteosarcoma was diagnosed in a prairie dog. Gross examination revealed a pale, tan, lobulated, sessile maxillary mass extending ventrally into the oral cavity from the hard palate and the gingiva surrounding the upper right cheek teeth. The mass invaded the right nasal cavity and retrobulbar space causing exophthalmia. Microscopically, the mass consisted of densely packed spindle-shaped cells with occasional multinucleated giant cells. Brightly eosinophilic osteoid was multifocally scattered in the tumor mass. To the authors' knowledge, this is the first documented report of maxillary osteosarcoma in a prairie dog.
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Affiliation(s)
- Pamela Mouser
- Animal Disease Diagnostic Laboratory and Department of Veterinary Pathobiology, Purdue University, West Lafayette, IN 47907, USA
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36
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Fan TM, Khanna C. Comparative Aspects of Osteosarcoma Pathogenesis in Humans and Dogs. Vet Sci 2015; 2:210-230. [PMID: 29061942 PMCID: PMC5644632 DOI: 10.3390/vetsci2030210] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 08/01/2015] [Accepted: 08/11/2015] [Indexed: 01/10/2023] Open
Abstract
Osteosarcoma (OS) is a primary and aggressive bone sarcoma affecting the skeleton of two principal species, human beings and canines. The biologic behavior of OS is conserved between people and dogs, and evidence suggests that fundamental discoveries in OS biology can be facilitated through detailed and comparative studies. In particular, the relative genetic homogeneity associated with specific dog breeds can provide opportunities to facilitate the discovery of key genetic drivers involved in OS pathogenesis, which, to-date, remain elusive. In this review, known causative factors that predispose to the development OS in human beings and dogs are summarized in detail. Based upon the commonalities shared in OS pathogenesis, it is likely that foundational discoveries in one species will be translationally relevant to the other and emphasizes the unique opportunities that might be gained through comparative scientific approaches.
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Affiliation(s)
- Timothy M Fan
- Department of Veterinary Clinical Medicine, Comparative Oncology Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61820, USA.
| | - Chand Khanna
- Tumor and Metastasis Biology Section, Pediatric Oncology Branch, Center for Clinical Research, The National Cancer Institute, Washington, DC 20004, USA.
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37
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Soltero-Rivera M, Engiles JB, Reiter AM, Reetz J, Lewis JR, Sánchez MD. Benign and Malignant Proliferative Fibro-osseous and Osseous Lesions of the Oral Cavity of Dogs. Vet Pathol 2015; 52:894-902. [DOI: 10.1177/0300985815583096] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Ossifying fibroma (OF) and fibrous dysplasia (FD) are benign, intraosseous, proliferative fibro-osseous lesions (PFOLs) characterized by replacement of normal bone by a fibrous matrix with various degrees of mineralization and ossification. Osteomas are benign tumors composed of mature, well-differentiated bone. Clinical, imaging, and histologic features of 15 initially diagnosed benign PFOLs and osteomas of the canine oral cavity were evaluated. Final diagnoses after reevaluation were as follows: OF (3 cases), FD (4 cases), low-grade osteosarcoma (LG-OSA) (3 cases), and osteoma (5 cases). Histology alone often did not result in a definitive diagnosis for PFOL. OF appeared as a well-circumscribed, radiopaque mass with some degree of bone lysis on imaging. Most lesions of FD showed soft tissue opacity with bone lysis and ill-defined margins. Low-grade OSA appeared as a lytic lesion with a mixed opacity and ill-defined margins. Osteomas were characterized by a mineralized, expansile, well-circumscribed lesion. Although histologic features of PFOLs were typically bland, the lesions diagnosed as LG-OSA had some features of malignancy (eg, bone invasion or a higher mitotic index). Treatment varied widely. Of the 10 dogs with benign PFOL or osteoma with known outcome (10/12), 9 showed either complete response (6/10) or stable disease (3/10) after treatment. Of the 2 dogs with LG-OSA with known outcome, 1 showed complete response after curative intent surgery, but 1 patient had recurrence after partial maxillectomy. Definitive diagnosis of mandibular/maxillary PFOL is challenging via histopathologic examination alone, and accurate diagnosis is best achieved through assimilation of clinical, imaging, and histopathologic features.
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Affiliation(s)
- M. Soltero-Rivera
- Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - J. B. Engiles
- Department of Pathology and Toxicology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - A. M. Reiter
- Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - J. Reetz
- Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - J. R. Lewis
- Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - M. D. Sánchez
- Department of Pathology and Toxicology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Wycislo KL, Fan TM. The immunotherapy of canine osteosarcoma: a historical and systematic review. J Vet Intern Med 2015; 29:759-69. [PMID: 25929293 PMCID: PMC4895426 DOI: 10.1111/jvim.12603] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 02/15/2015] [Accepted: 03/24/2015] [Indexed: 11/29/2022] Open
Abstract
Osteosarcoma is a malignant mesenchymal neoplasm that accounts for the majority of primary bone tumors in dogs and shares biological and clinical similarities with osteosarcoma in humans. Despite dose intensification with conventional cytotoxic therapies, survival times for dogs and humans diagnosed with high‐grade osteosarcoma have not changed in the past 20 years, with the principal cause of mortality being the development of pulmonary metastases. Given the therapeutic plateau reached for delaying metastatic progression with cytotoxic agents, exploration of alterative adjuvant therapies for improving management of osteosarcoma micrometastases is clinically justified. Evidence suggests that osteosarcoma is an immunogenic tumor, and development of immunotherapies for the treatment of microscopic lung metastases might improve long‐term outcomes. In this review, the history and foundational knowledge of immune interactions to canine osteosarcoma are highlighted. In parallel, immunotherapeutic strategies that have been explored for the treatment of canine osteosarcoma are summarized. With a greater understanding and awareness for how the immune system might be redirected toward combating osteosarcoma metastases, the rational development of diverse immune strategies for managing osteosarcoma holds substantial promise for transforming the therapeutic landscape and improving disease management in both dogs and human beings.
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Affiliation(s)
- K L Wycislo
- Department of Pathobiology, University of Illinois, Urbana, IL, 61802.,Veterinary Diagnostic Laboratory, University of Illinois, Urbana, IL, 61802
| | - T M Fan
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, 61802
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39
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Nagamine E, Hirayama K, Matsuda K, Okamoto M, Ohmachi T, Kadosawa T, Taniyama H. Diversity of Histologic Patterns and Expression of Cytoskeletal Proteins in Canine Skeletal Osteosarcoma. Vet Pathol 2015; 52:977-84. [PMID: 25770040 DOI: 10.1177/0300985815574006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Osteosarcoma (OS), the most common bone tumor, includes OS of the head (OSH) and appendicular OS (OSA). In dogs, it is classified into 6 histologic subtypes: osteoblastic, chondroblastic, fibroblastic, telangiectatic, giant cell, and poorly differentiated. This study investigated the significance of the histologic classification relevant to clinical outcome and the histologic and immunohistochemical relationships between pleomorphism and expression of cytoskeletal proteins in 60 cases each of OSH and OSA. Most neoplasms exhibited histologic diversity, and 64% of OS contained multiple subtypes. In addition to the above 6 subtypes, myxoid, round cell, and epithelioid subtypes were observed. Although the epithelioid subtypes were observed in only OSH, no significant difference in the frequency of other subtypes was observed. Also, no significant relevance was observed between the clinical outcome and histologic subtypes. Cytokeratin (CK) was expressed in both epithelioid and sarcomatoid tumor cells in various subtypes, and all CK-positive tumor cells also expressed vimentin. Vimentin and α-smooth muscle actin (SMA) were expressed in all subtypes. A few SMA-positive spindle-shaped tumor cells exhibited desmin expression. Glial fibrillary acidic protein-positive tumor cells were observed in many subtypes, and some of these cells showed neurofilament expression. Although OSH exhibited significantly stronger immunoreactivity for SMA than OSA, no significant difference in other cytoskeletal proteins was observed. Some tumor cells had cytoskeletal protein expression compatible with the corresponding histologic subtypes, such as CK in the epithelioid subtype and SMA in the fibroblastic subtype. Thus, canine skeletal OS is composed of pleomorphic and heterogenous tumor cells as is reflected in the diversity of histologic patterns and expression of cytoskeletal proteins.
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Affiliation(s)
- E Nagamine
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - K Hirayama
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - K Matsuda
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - M Okamoto
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | | | - T Kadosawa
- Department of Small Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan
| | - H Taniyama
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
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40
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Duffy D, Selmic LE, Kendall AR, Powers BE. Outcome following treatment of soft tissue and visceral extraskeletal osteosarcoma in 33 dogs: 2008-2013. Vet Comp Oncol 2015; 15:46-54. [PMID: 25643914 DOI: 10.1111/vco.12141] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Revised: 12/22/2014] [Accepted: 12/22/2014] [Indexed: 11/26/2022]
Abstract
Extraskeletal osteosarcoma (EOS) is a rare, highly malignant mesenchymal neoplasm arising from viscera or soft tissues characterised by the formation of osteoid in the absence of bone involvement. Owing to the rarity of these neoplasms very little information exists on treatment outcomes. The purpose of this study was to describe the outcome following surgical treatment of non-mammary and non-thyroidal soft tissue and visceral EOS in dogs. Thirty-three dogs were identified; the most common primary tumour site was the spleen. Dogs that had wide or radical tumour excision had longer survival times compared with dogs that had only marginal tumour excision performed [median survival time of 90 days (range: 0-458 days) versus median survival time of 13 days (range: 0-20 days)]. The use of surgery should be considered in the management of dogs with non-mammary and non-thyroidal soft tissue and visceral EOS.
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Affiliation(s)
- D Duffy
- Veterinary Clinical Sciences, Purdue Veterinary Teaching Hospital, West LaFayette, IN, USA
| | - L E Selmic
- Department of Veterinary Clinical Medicine, University of Illinois, Urbana, IL, USA
| | - A R Kendall
- Veterinary Clinical Sciences, Purdue Veterinary Teaching Hospital, West LaFayette, IN, USA
| | - B E Powers
- Colorado State University Diagnostic Laboratories, Fort Collins, CO, USA
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Selmic LE, Lafferty MH, Kamstock DA, Garner A, Ehrhart NP, Worley DR, Withrow SJ, Lana SE. Outcome and prognostic factors for osteosarcoma of the maxilla, mandible, or calvarium in dogs: 183 cases (1986–2012). J Am Vet Med Assoc 2014; 245:930-8. [DOI: 10.2460/javma.245.8.930] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Aguado E, Goyenvalle E, Guintard C. A case of polyostotic osteosarcoma with kidney metastases in a dog: histopathology and microcomputed tomographic analysis. Morphologie 2014; 98:187-92. [PMID: 24993506 DOI: 10.1016/j.morpho.2014.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 05/22/2014] [Accepted: 05/26/2014] [Indexed: 11/16/2022]
Abstract
A 7-year- old sexually intact female Leonberg dog was evaluated for chronic lameness of the right forelimb. The bitch showed mild hyperthermia (39.3°C), a decrease in its activity, a capricious appetite, a high weight loss (4 kg in 15 days) and a right foreleg lameness. A careful clinical examination revealed a deformation of the right proximal humerus and right tibia. Radiographic examination of the right tibia, right humerus showed osteolysis of both cortical and trabecular bone with a periosteal bone proliferation in the vicinal soft tissues. The owner having refused a bone biopsy, a treatment with NSAIDs and antibiotics was prescribed. After a marked improvement during the first two weeks, an increase in lameness and activity was observed. At that time, the owner accepted the bone biopsy. Histopathologic examination evidenced an osteosarcoma but the amount of available tissue was limited. Due to the poor prognosis, he declined treatment and decided to euthanize the dog. An osteosarcoma with a large chondroid component was observed at autopsy together with ossifying kidney metastases. Histological findings revealed a grade III osteosarcoma. Conventional and undecalcified histology and X-ray microcomputed tomography findings evidenced a large and partially mineralized osteoid part with a sunburst extension in the soft tissues. This is the first time that microCT and undecalcified analyses of an osteosarcoma are presented. The osteolytic and metaplastic bone foci were easily demonstrated by this method.
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Affiliation(s)
- E Aguado
- Oniris, National Veterinary School of Nantes, UPSP « biologie et biomatériaux du tissus osseux - chirurgie expérimentale », route de Gâchet, BP 44706, 44307 Nantes cedex 03, France; LUNAM université, GEROM-LHEA groupe études remodelage osseux et biomatériaux, Angers, France.
| | - E Goyenvalle
- Oniris, National Veterinary School of Nantes, UPSP « biologie et biomatériaux du tissus osseux - chirurgie expérimentale », route de Gâchet, BP 44706, 44307 Nantes cedex 03, France; LUNAM université, GEROM-LHEA groupe études remodelage osseux et biomatériaux, Angers, France
| | - C Guintard
- Oniris, National Veterinary School of Nantes, UPSP « biologie et biomatériaux du tissus osseux - chirurgie expérimentale », route de Gâchet, BP 44706, 44307 Nantes cedex 03, France
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Vanel M, Blond L, Vanel D. Imaging of primary bone tumors in veterinary medicine: Which differences? Eur J Radiol 2013; 82:2129-39. [DOI: 10.1016/j.ejrad.2011.11.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fahey CE, Milner RJ, Kow K, Bacon NJ, Salute ME. Apoptotic effects of the tyrosine kinase inhibitor, masitinib mesylate, on canine osteosarcoma cells. Anticancer Drugs 2013; 24:519-26. [DOI: 10.1097/cad.0b013e32836002ba] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Coyle VJ, Rassnick KM, Borst LB, Rodriguez CO, Northrup NC, Fan TM, Garrett LD. Biological behaviour of canine mandibular osteosarcoma. A retrospective study of 50 cases (1999-2007). Vet Comp Oncol 2013; 13:89-97. [DOI: 10.1111/vco.12020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 01/03/2013] [Accepted: 01/03/2013] [Indexed: 11/30/2022]
Affiliation(s)
- V. J. Coyle
- College of Veterinary Medicine; University of Illinois; Urbana IL USA
| | - K. M. Rassnick
- College of Veterinary Medicine; Cornell University; Ithaca NY USA
| | - L. B. Borst
- College of Veterinary Medicine; North Carolina State University; Raleigh NC USA
| | - C. O. Rodriguez
- Davis School of Veterinary Medicine; University of California; Davis CA USA
| | - N. C. Northrup
- College of Veterinary Medicine; University of Georgia; Athens GA USA
| | - T. M. Fan
- College of Veterinary Medicine; University of Illinois; Urbana IL USA
| | - L. D. Garrett
- College of Veterinary Medicine; University of Illinois; Urbana IL USA
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Kruse MA, Holmes ES, Balko JA, Fernandez S, Brown DC, Goldschmidt MH. Evaluation of Clinical and Histopathologic Prognostic Factors for Survival in Canine Osteosarcoma of the Extracranial Flat and Irregular Bones. Vet Pathol 2012; 50:704-8. [DOI: 10.1177/0300985812471542] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Osteosarcoma is the most common bone tumor in dogs. However, current literature focuses primarily on appendicular osteosarcoma. This study examined the prognostic value of histological and clinical factors in flat and irregular bone osteosarcomas and hypothesized that clinical factors would have a significant association with survival time while histological factors would not. All osteosarcoma biopsy samples of the vertebra, rib, sternum, scapula, or pelvis were reviewed while survival information and clinical data were obtained from medical records, veterinarians, and owners. Forty-six dogs were included in the analysis of histopathological variables and 27 dogs with complete clinical data were included in the analysis of clinical variables. In the histopathologic cox regression model, there was no significant association between any histologic feature of osteosarcoma, including grade, and survival time. In the clinical cox regression model, there was a significant association between the location of the tumor and survival time as well as between the percent elevation of alkaline phosphatase (ALP) above normal and survival time. Controlling for ALP elevation, dogs with osteosarcoma located in the scapula had a significantly greater hazard for death (2.8) compared to dogs with tumors in other locations. Controlling for tumor location, every 100% increase in ALP from normal increased the hazard for death by 1.7. For canine osteosarcomas of the flat and irregular bones, histopathological features, including grade do not appear to be rigorous predictors of survival. Clinical variables such as increased ALP levels and tumor location in the scapula were associated with decreased survival times.
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Affiliation(s)
- M. A. Kruse
- Department of Clinical Studies, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - E. S. Holmes
- Department of Clinical Studies, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - J. A. Balko
- Department of Pathobiology, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - S. Fernandez
- Department of Clinical Studies, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - D. C. Brown
- Department of Clinical Studies, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - M. H. Goldschmidt
- Department of Pathobiology, Veterinary Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
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Farcas N, Arzi B, Verstraete FJM. Oral and maxillofacial osteosarcoma in dogs: a review. Vet Comp Oncol 2012; 12:169-80. [DOI: 10.1111/j.1476-5829.2012.00352.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 07/31/2012] [Accepted: 07/31/2012] [Indexed: 11/29/2022]
Affiliation(s)
- N. Farcas
- William R. Pritchard Veterinary Medical Teaching Hospital, School of Veterinary Medicine; University of California-Davis; Davis CA USA
| | - B. Arzi
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine; University of California-Davis; Davis CA USA
| | - F. J. M. Verstraete
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine; University of California-Davis; Davis CA USA
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Vancil JM, Henry CJ, Milner RJ, McCoig AM, Lattimer JC, Villamil JA, McCaw DL, Bryan JN. Use of samarium Sm 153 lexidronam for the treatment of dogs with primary tumors of the skull: 20 cases (1986–2006). J Am Vet Med Assoc 2012; 240:1310-5. [DOI: 10.2460/javma.240.11.1310] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Saam DE, Liptak JM, Stalker MJ, Chun R. Predictors of outcome in dogs treated with adjuvant carboplatin for appendicular osteosarcoma: 65 cases (1996-2006). J Am Vet Med Assoc 2011; 238:195-206. [PMID: 21235373 DOI: 10.2460/javma.238.2.195] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine outcomes and prognostic factors for those outcomes in dogs with appendicular osteosarcoma treated with curative-intent surgery and adjuvant carboplatin. DESIGN Retrospective case series. ANIMALS 65 client-owned dogs with appendicular osteosarcoma and no evidence of gross metastatic disease at the time of diagnosis. PROCEDURES Medical records of dogs that underwent limb amputation or distal ulnectomy and adjuvant carboplatin treatment for appendicular osteosarcoma were reviewed. Adverse effects of chemotherapy and findings regarding preoperative biopsy specimens and postoperative diagnostic imaging were recorded. Signalment, clinical history, and chemotherapy variables were evaluated for associations with outcome. Histologic grade and other variables were evaluated for association with outcome for 38 tumors that were retrospectively graded. RESULTS The median disease-free interval was 137 days (95% confidence interval [CI], 112 to 177 days). Median survival time was 277 days (95% CI, 203 to 355 days). The 1-, 2-, and 3-year survival rates were 36%, 22%, and 19%, respectively. None of the chemotherapy variables were associated with outcome. Preoperative proteinuria was the only clinical variable associated with poor outcome. Histologic features of tumors associated with a poor outcome were intravascular invasion, mitotic index > 5 in 3 microscopic hpfs, and grade III classification. CONCLUSIONS AND CLINICAL RELEVANCE Carboplatin administration was well tolerated and resulted in a disease-free interval and median survival time similar to those of other published protocols.
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Affiliation(s)
- Dianna E Saam
- MedVet Medical and Cancer Center for Pets, 300 E Wilson Bridge Rd, Worthington, OH 43085, USA.
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Kanaya N, Yazawa M, Goto-Koshino Y, Mochizuki M, Nishimura R, Ohno K, Sasaki N, Tsujimoto H. Anti-tumor effect of adenoviral vector-mediated p53 gene transfer on the growth of canine osteosarcoma xenografts in nude mice. J Vet Med Sci 2011; 73:877-83. [PMID: 21350316 DOI: 10.1292/jvms.10-0570] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We evaluated the anti-tumor effect of adenoviral vector-mediated p53 gene therapy on the growth of canine osteosarcoma xenografts formed in nude mice. Nude mice were subcutaneously transplanted with cells of 2 P53 mutant canine osteosarcoma cell lines, POS and CHOS. The osteosarcoma xenografts were injected with either an adenoviral vector that expresses canine wild-type P53 (AxCA-cp53) or LacZ (AxCA-LacZ). Tumor growth was significantly inhibited in the xenografts injected with AxCA-cp53 in comparison to those injected with AxCA-LacZ or PBS during the observation period of 27 days. An increase of the amount of p21(WAF1/CDKN1A) mRNA, and the number of apoptotic cells was shown in the tumors injected with AxCA-cp53 in comparison to those injected with AxCA-LacZ or PBS. The present study revealed that the adenoviral vector-mediated p53 gene transfer had an anti-tumor effect in canine osteosarcoma xenografts formed in nude mice.
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Affiliation(s)
- Noriko Kanaya
- Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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