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Rissi DR, Miller AD. Rosettes and pseudorosettes in veterinary neuropathology. Vet Pathol 2024:3009858241269877. [PMID: 39140425 DOI: 10.1177/03009858241269877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Rosettes and pseudorosettes are morphologic cell arrangements found in many neuroepithelial neoplasms in human medicine, including embryonal nervous system tumors (neuroblastoma, medulloblastoma, pineoblastoma, and retinoblastoma), non-embryonal nervous system tumors (ependymoma, astrocytoma, oligodendroglioma, and choroid plexus tumors), and other extraneural neuroepithelial neoplasms. Although these structures are also described in neuroepithelial neoplasms of domestic animals, their frequency is still poorly characterized or inconsistently documented in veterinary medicine. Furthermore, rosettes and pseudorosettes need to be interpreted with caution and within a clinical and pathologic context and should not be solely relied upon for diagnostic confirmation of a particular neoplasm. Here, we review the morphologic features and frequency of the most common types of rosettes and pseudorosettes described in neuroepithelial neoplasms of domestic animals, focusing primarily on those occurring in the nervous system and closely associated tissues.
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Aytaş Ç, Gilardini R, Beghelli A, Barili PA, Ori M, Cantile C. Spinal Cord Medulloepithelioma in a Cat. Vet Sci 2024; 11:177. [PMID: 38668444 PMCID: PMC11054255 DOI: 10.3390/vetsci11040177] [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: 03/01/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/29/2024] Open
Abstract
A 13-month-old, neutered, male, domestic shorthair cat was referred with a history of progressive paraparesis, proprioceptive ataxia, and lumbar spinal pain. Neurological examination revealed non-ambulatory paraparesis consistent with L4-S1 myelopathy. Magnetic resonance of the thoracolumbar spinal cord identified a dorsal intradural extramedullary space-occupying lesion extending from L5 to L6. It was homogeneously hyperintense in T2-weighted imaging and isointense in T1-weighted imaging and exhibited marked and homogeneous contrast enhancement in the T1-weighted post-contrast imaging. The removed tissue was composed of neoplastic cells arranged as pseudostratified or multilayered trabecular and tubular structures, supported by internal and external limiting PAS-positive membranes. The neoplastic cells were immunoreactive for vimentin and NSE and negative for GFAP, Olig2, synaptophysin, PCK, S-100, NeuN, and nestin. The Ki-67 nuclear labeling index was up to 90%. The tumor was consistent with the diagnosis of medulloepithelioma, which is most frequently reported as an intraocular tumor. The morphological and immunohistochemical features of the tumor showed remarkable concordance with most human medulloepitheliomas. This is the first spinal cord medullopethelioma report in a cat, with the clinical, neuroradiological, histological, and immunohistochemical findings being described.
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Affiliation(s)
- Çağla Aytaş
- Department of Veterinary Science, University of Pisa, 56126 Pisa, Italy;
| | - Raffaele Gilardini
- Clinica Veterinaria Città di Voghera, 27058 Voghera, Italy; (R.G.); (A.B.); (P.A.B.); (M.O.)
| | - Annalisa Beghelli
- Clinica Veterinaria Città di Voghera, 27058 Voghera, Italy; (R.G.); (A.B.); (P.A.B.); (M.O.)
| | - Paolo Andrea Barili
- Clinica Veterinaria Città di Voghera, 27058 Voghera, Italy; (R.G.); (A.B.); (P.A.B.); (M.O.)
| | - Melissa Ori
- Clinica Veterinaria Città di Voghera, 27058 Voghera, Italy; (R.G.); (A.B.); (P.A.B.); (M.O.)
| | - Carlo Cantile
- Department of Veterinary Science, University of Pisa, 56126 Pisa, Italy;
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3
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Malignant ocular teratoid medulloepithelioma in two cats. J Comp Pathol 2023; 201:10-12. [PMID: 36646033 DOI: 10.1016/j.jcpa.2022.12.007] [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: 07/17/2022] [Revised: 09/19/2022] [Accepted: 11/13/2022] [Indexed: 01/15/2023]
Abstract
Medulloepithelioma is a type of rare primitive neuroectodermal tumour. Most medulloepitheliomas are intraocular and they have been most frequently reported in horses and dogs. A single feline case has been reported but the teratoid form has not been previously reported in cats. Two cats presented with rapidly expanding intraocular masses and ophthalmic examination revealed vascularized uveal tumours extending into the anterior chamber and vitreous chamber. Following enucleation, histopathological examination of each case revealed a focally extensive infiltrative neoplasm that replaced the uveal tract, with retinal detachment and scleral vascular invasion. Rosettes, medullary tubes and heterotopic tissue were present. During follow-up periods of 3.4 and 8.8 years, no evidence of orbital recurrence or metastasis was found in either cat. To the best of our knowledge, these are the first case reports of teratoid medulloepithelioma in cats. Although the risk of metastasis cannot be excluded, as in other species, these findings support enucleation as a curative intervention.
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Schmidt RE, Kim RK, Fryer AL. Embryonal Tumour in the Eye of a Lady Gouldian Finch (Erythrura gouldiae) and Limited Review of Intraocular Tumours in Birds. J Comp Pathol 2022; 197:40-43. [DOI: 10.1016/j.jcpa.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/29/2022] [Accepted: 07/25/2022] [Indexed: 11/25/2022]
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Krieger EM, Pumphrey SA, Wood CA, Mouser PJ, Robinson NA, Maggio F. Retrospective evaluation of canine primary, multicentric, and metastatic intraocular neoplasia. Vet Ophthalmol 2022; 25:343-349. [PMID: 35395124 DOI: 10.1111/vop.12988] [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: 05/01/2021] [Revised: 03/16/2022] [Accepted: 03/30/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To provide an updated characterization of the prevalence of primary, multicentric, and metastatic intraocular tumors in the canine patient. PROCEDURES Medical records databases from 4 veterinary referral hospitals were reviewed from 1999 to present to identify dogs with a diagnosis of intraocular neoplasia histopathologically confirmed following enucleation or necropsy. RESULTS One hundred seventy-two dogs with 173 intraocular neoplasms met the inclusion criteria. Primary intraocular neoplasms were the most common tumors in the study (128); the two most common types were melanocytic neoplasia (90), followed by iridociliary neoplasia (33). There were 28 cases of intraocular involvement secondary to round cell neoplasia, with 18 cases of lymphoma, seven histiocytic sarcomas, and three undifferentiated round cell neoplasms. There were 17 cases of metastatic intraocular neoplasia, with hemangiosarcoma being the most common (9). CONCLUSIONS The majority of intraocular tumors in dogs arise from the ocular tissues. However, the eye may also be involved in patients with multicentric neoplasia, and, less commonly, as a site for metastatic disease. Ocular screening for patients with multicentric neoplasia should be considered during staging, and ocular signs should be viewed with suspicion in dogs with neoplasia in other sites.
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Affiliation(s)
- Emily M Krieger
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, USA
| | - Stephanie A Pumphrey
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, USA
| | - Carrie A Wood
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, USA
| | - Pamela J Mouser
- Department of Pathology, Angell Animal Medical Center, Boston, Massachusetts, USA
| | - Nicholas A Robinson
- Department of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, Massachusetts, USA
| | - Federica Maggio
- Department of Ophthalmology, Tufts Veterinary Emergency Treatment and Specialties, Walpole, Massachusetts, USA
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6
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Martins BC, Struthers J, Abbott JR, Plummer CE. Retrobulbar embryonal tumor with multilayered rosettes in a golden retriever dog. Clin Case Rep 2021; 9:660-668. [PMID: 33598221 PMCID: PMC7869333 DOI: 10.1002/ccr3.3602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 12/03/2022] Open
Abstract
Although rare, embryonal tumors (previously called primitive neuroectodermal tumors) should be considered in the differential diagnosis of retrobulbar tumors in dogs regardless of the age of the patient, and ancillary tests are required for definitive diagnosis.
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Affiliation(s)
- Bianca C. Martins
- Department of Small Animal Clinical SciencesUniversity of FloridaGainesvilleFLUSA
- Department of Surgical and Radiological Sciences, School of Veterinary MedicineUniversity of CaliforniaDavisCAUSA
| | - Jason Struthers
- Department of Comparative, Diagnostic, and Population MedicineCollege of Veterinary MedicineUniversity of FloridaGainesvilleFLUSA
- Department of Pathology & Population MedicineAnimal Health InstituteMidwestern UniversityGlendaleAZUSA
| | - Jeffrey R. Abbott
- Department of Comparative, Diagnostic, and Population MedicineCollege of Veterinary MedicineUniversity of FloridaGainesvilleFLUSA
| | - Caryn E. Plummer
- Department of Small Animal Clinical SciencesUniversity of FloridaGainesvilleFLUSA
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7
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Davis RL, Reilly CM, Moore PA. Surgical excision of iridociliary tumors using a postero-anterior cyclo-iridectomy and thermocautery in two dogs. Vet Ophthalmol 2020; 23:579-587. [PMID: 32237209 DOI: 10.1111/vop.12755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 01/23/2020] [Accepted: 02/05/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To report the surgical excision of an iridociliary adenoma and iridal melanocytoma using a postero-anterior cyclo-iridectomy in two dogs. PROCEDURE A 7 year old neutered male English springer spaniel (case 1) and a 7 year old neutered male Labrador mix (case 2) were presented for evaluation of an intrairidal mass OS. RESULTS Complete ophthalmic examination revealed a large, dorsonasal, well-demarcated, intrairidal mass OS. A tan to pink intrairidal mass extending into the iridocorneal angle (case 1) and a pigmented intrairidal mass (case 2) were present. B-mode ultrasonography showed a focal, soft tissue, homogenous mass within the uvea adjacent to and contacting the lens. Neither pars plana involvement nor vitreal extension was present. A postero-anterior cyclo-iridectomy was performed through a polyhedral scleral flap. Thermocautery was used to complete the cyclo-iridectomy (case 1) and partial iridectomy (case 2) to excise the mass en bloc. Histopathology revealed a completely excised iridociliary adenoma (case 1) and iris melanocytoma (case 2). The surgery sites healed without complication. Mild uveitis (cases 1 and 2), scant vitreal hemorrhage (case 1), and mild hyphema (case 2) were present three days postoperatively but had resolved ten days postoperatively. The patients remain visual twenty-two months (case 1) and seven months (case 2) postoperatively with a normal intraocular examination other than an iridal defect and mild dorsonasal lens capsular opacities. CONCLUSIONS The surgical approach described in these cases is utilized in physician-based medicine. This approach and the use of thermocautery provide a viable surgical option for excision of large iridociliary tumors in dogs.
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Affiliation(s)
| | | | - Phillip A Moore
- Department of Clinical Science, Auburn University, Auburn, Alabama
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Hsieh YH, Hsu YH, Lien CY, Liu CH, Li WT. Retroperitoneal extraosseous peripheral primitive neuroectodermal tumor in a Formosan serow: case report and literature review. J Vet Diagn Invest 2019; 31:883-888. [PMID: 31585511 DOI: 10.1177/1040638719879198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A 10-y-old female captive Formosan serow (Capricornis swinhoei) was inactive and was azotemic. An autopsy was performed following her death, and multiple irregularly shaped, white-to-gray masses of 0.5-2 cm diameter were noted on both ureters, the left adrenal gland, urinary bladder, and uterus. Microscopically, organs were effaced by a poorly demarcated, highly infiltrative neoplasm, composed of neoplastic round cells arranged in islands, sheets, or nests with occasional rosette formation. The neoplastic cells were small: ≤2 red blood cell (≤ 15 μm) diameter. The neoplastic cells were positive for CD56, CK, FLI-1, and NSE, but negative for desmin, GFAP, melan A, NF, PAX-8, S100, synaptophysin, and vimentin. Therefore, the diagnosis of retroperitoneal extraosseous peripheral primitive neuroectodermal tumor (pPNET) was made. pPNET with FLI-1 expression has not been reported previously in animals, to our knowledge.
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Affiliation(s)
- Yu-Han Hsieh
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan (Hsieh, Liu, Li).,Department of Pathology, Hualien Tzu Chi Hospital and Buddhist Tzu Chi University, Hualien, Taiwan (Hsu).,Taipei Zoo, Taipei, Taiwan (Lien).,Fishhead Labs, Stuart, FL (Li)
| | - Yung-Hsiang Hsu
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan (Hsieh, Liu, Li).,Department of Pathology, Hualien Tzu Chi Hospital and Buddhist Tzu Chi University, Hualien, Taiwan (Hsu).,Taipei Zoo, Taipei, Taiwan (Lien).,Fishhead Labs, Stuart, FL (Li)
| | - Chen-Yeh Lien
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan (Hsieh, Liu, Li).,Department of Pathology, Hualien Tzu Chi Hospital and Buddhist Tzu Chi University, Hualien, Taiwan (Hsu).,Taipei Zoo, Taipei, Taiwan (Lien).,Fishhead Labs, Stuart, FL (Li)
| | - Chen-Hsuan Liu
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan (Hsieh, Liu, Li).,Department of Pathology, Hualien Tzu Chi Hospital and Buddhist Tzu Chi University, Hualien, Taiwan (Hsu).,Taipei Zoo, Taipei, Taiwan (Lien).,Fishhead Labs, Stuart, FL (Li)
| | - Wen-Ta Li
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan (Hsieh, Liu, Li).,Department of Pathology, Hualien Tzu Chi Hospital and Buddhist Tzu Chi University, Hualien, Taiwan (Hsu).,Taipei Zoo, Taipei, Taiwan (Lien).,Fishhead Labs, Stuart, FL (Li)
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Munier FL, Beck-Popovic M, Chantada GL, Cobrinik D, Kivelä TT, Lohmann D, Maeder P, Moll AC, Carcaboso AM, Moulin A, Schaiquevich P, Bergin C, Dyson PJ, Houghton S, Puccinelli F, Vial Y, Gaillard MC, Stathopoulos C. Conservative management of retinoblastoma: Challenging orthodoxy without compromising the state of metastatic grace. "Alive, with good vision and no comorbidity". Prog Retin Eye Res 2019; 73:100764. [PMID: 31173880 DOI: 10.1016/j.preteyeres.2019.05.005] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 05/25/2019] [Accepted: 05/29/2019] [Indexed: 12/21/2022]
Abstract
Retinoblastoma is lethal by metastasis if left untreated, so the primary goal of therapy is to preserve life, with ocular survival, visual preservation and quality of life as secondary aims. Historically, enucleation was the first successful therapeutic approach to decrease mortality, followed over 100 years ago by the first eye salvage attempts with radiotherapy. This led to the empiric delineation of a window for conservative management subject to a "state of metastatic grace" never to be violated. Over the last two decades, conservative management of retinoblastoma witnessed an impressive acceleration of improvements, culminating in two major paradigm shifts in therapeutic strategy. Firstly, the introduction of systemic chemotherapy and focal treatments in the late 1990s enabled radiotherapy to be progressively abandoned. Around 10 years later, the advent of chemotherapy in situ, with the capitalization of new routes of targeted drug delivery, namely intra-arterial, intravitreal and now intracameral injections, allowed significant increase in eye preservation rate, definitive eradication of radiotherapy and reduction of systemic chemotherapy. Here we intend to review the relevant knowledge susceptible to improve the conservative management of retinoblastoma in compliance with the "state of metastatic grace", with particular attention to (i) reviewing how new imaging modalities impact the frontiers of conservative management, (ii) dissecting retinoblastoma genesis, growth patterns, and intraocular routes of tumor propagation, (iii) assessing major therapeutic changes and trends, (iv) proposing a classification of relapsing retinoblastoma, (v) examining treatable/preventable disease-related or treatment-induced complications, and (vi) appraising new therapeutic targets and concepts, as well as liquid biopsy potentiality.
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Affiliation(s)
- Francis L Munier
- Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, University of Lausanne, Lausanne, Switzerland.
| | - Maja Beck-Popovic
- Unit of Pediatric Hematology-Oncology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Guillermo L Chantada
- Hemato-Oncology Service, Hospital JP Garrahan, Buenos Aires, Argentina; Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona, Spain; Institut de Recerca Sant Joan de Deu, Barcelona, Spain
| | - David Cobrinik
- The Vision Center and The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA; USC Roski Eye Institute, Department of Biochemistry & Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Tero T Kivelä
- Department of Ophthalmology, Ocular Oncology and Pediatric Ophthalmology Services, Helsinki University Hospital, Helsinki, Finland
| | - Dietmar Lohmann
- Eye Oncogenetics Research Group, Institute of Human Genetics, University Hospital Essen, Essen, Germany
| | - Philippe Maeder
- Unit of Neuroradiology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Annette C Moll
- UMC, Vrije Universiteit Amsterdam, Department of Ophthalmology, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Angel Montero Carcaboso
- Pediatric Hematology and Oncology, Hospital Sant Joan de Deu, Barcelona, Spain; Institut de Recerca Sant Joan de Deu, Barcelona, Spain
| | - Alexandre Moulin
- Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, University of Lausanne, Lausanne, Switzerland
| | - Paula Schaiquevich
- Unit of Clinical Pharmacokinetics, Hospital de Pediatria JP Garrahan, Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Ciara Bergin
- Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, University of Lausanne, Lausanne, Switzerland
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Susan Houghton
- Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, University of Lausanne, Lausanne, Switzerland
| | - Francesco Puccinelli
- Interventional Neuroradiology Unit, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Yvan Vial
- Materno-Fetal Medicine Unit, Woman-Mother-Child Department, University Hospital of Lausanne, Switzerland
| | - Marie-Claire Gaillard
- Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, University of Lausanne, Lausanne, Switzerland
| | - Christina Stathopoulos
- Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, University of Lausanne, Lausanne, Switzerland
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10
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Monk CS, Craft WF, Abbott JR, Farina LL, Reuss SM, Czerwinski SL, Brooks DE, Plummer CE. Clinical behavior of intraocular teratoid medulloepithelioma in two-related Quarter Horses. Vet Ophthalmol 2016; 20:551-559. [PMID: 27440405 DOI: 10.1111/vop.12409] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The objective of this paper is to describe clinical behavior, histopathologic features, and immunohistochemical staining of two-related horses with intraocular teratoid medulloepithelioma. Two-related Quarter Horses with similar intraocular masses presented to the UF-CVM Comparative Ophthalmology Service for evaluation and treatment. The first horse, a 3-year-old gelding, had glaucoma and a cyst-like mass in the anterior chamber. Enucleation was performed. Histopathology revealed a teratoid medulloepithelioma. The tumor was considered to be completely excised. Fifteen months later, the gelding presented with swelling of the enucleated orbit and local lymph nodes with deformation of the skull. Cytology revealed neuroectodermal neoplastic cells. Necropsy confirmed tumor metastasis. Six weeks later, a 9-year-old mare, a full sibling to the gelding, presented for examination. An infiltrative mass of the iris and ciliary body was found that extended into the anterior, posterior, and vitreal chambers. Uveitis was present, but secondary glaucoma was not noted. Enucleation was performed and the histopathologic diagnosis was also teratoid medulloepithelioma. The mare has had no recurrence to date, 2 years following enucleation. Metastasis of intraocular teratoid medulloepithelioma is possible. Staging is recommended in cases where the diagnosis of teratoid medulloepithelioma is confirmed. Surveillance of full siblings is recommended until more information regarding etiology is known.
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Affiliation(s)
- Caroline S Monk
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - William F Craft
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Jeffrey R Abbott
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Lisa L Farina
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Sarah M Reuss
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Sarah L Czerwinski
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Dennis E Brooks
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.,Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Caryn E Plummer
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.,Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
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11
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Nakano Y, Une Y. Primary peripheral primitive neuroectodermal tumour of the tongue in a peach‐faced lovebird (
Agapornis roseicollis
). VETERINARY RECORD CASE REPORTS 2016. [DOI: 10.1136/vetreccr-2016-000318] [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)
| | - Yumi Une
- Laboratory of Veterinary PathologyAzabu UniversitySagamiharaKanagawaJapan
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12
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Retinoblastoma in the adolescent. Unusual clinical and histopathology findings. ACTA ACUST UNITED AC 2016; 91:145-8. [PMID: 26796428 DOI: 10.1016/j.oftal.2015.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 12/07/2015] [Indexed: 11/22/2022]
Abstract
CASE REPORT A 17-year- old male with 2years history of an intraocular mass and progressive visual loss of the left eye. Spontaneous sclera rupture occurred during enucleation. Microscopic evaluation with H-E, PAS and immunohistochemistry (NSE, GAFP, SYN, CD99) revealed a small blue round cell malignant neoplasm with extensive necrosis and apoptosis. The optic nerve, ciliary body, choroid, anterior chamber, and sclera were infiltrated. SYN was positive and CD99 was negative in neoplastic cells, consistent with a poorly differentiated retinoblastoma. DISCUSSION Retinoblastoma is the most frequent primary intraocular malignant tumour in childhood, but occasionally older patients can be affected. Immunohistochemistry is mandatory in poorly differentiated retinoblastomas.
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13
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Mandrioli L, Sirri R, Gustinelli A, Quaglio F, Sarli G, Chiocchetti R. Ocular glioneuroma with medulloepitheliomatous differentiation in a goldfish (Carassius auratus). J Vet Diagn Invest 2014; 26:167-72. [DOI: 10.1177/1040638713515218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
An intraocular mass in the left eye causing chronic severe exophthalmia in an adult female goldfish ( Carassius auratus) is described. The fish shared an aquarium with another goldfish found dead with gross and microscopic lesions consistent with mycobacteriosis. Histological examination of the left eye, histochemical (periodic acid–Schiff [PAS], Alcian blue, Ziehl–Neelsen) and immunohistochemical tests (glial fibrillary acidic protein, human neuronal protein, vimentin, and cytokeratin AE1/AE3) were carried out on the intraocular mass. Neoplastic cells forming an unencapsulated highly cellular proliferation partially covered by an intact corneal epithelium were stained with Alcian blue, which demonstrated an abundant hyaluronic acid–rich extracellular matrix. Multifocally, there were cyst-like dilatations bordered by neuroepithelial cells, which were PAS-positive. The complex neoplastic proliferation was composed of glial-like cells, neuronal-like cells (immunoreactive to glial fibrillary acidic protein and human neuronal protein, respectively) and neuroepithelium, which suggested a retinal origin.
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Affiliation(s)
- Luciana Mandrioli
- Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy (Mandrioli, Sirri, Gustinelli, Sarli, Chiocchetti)
- Department of Comparative Biomedicine and Food Science, University of Padua, Agripolis, Viale dell’Università 16, Legnaro, Padua, Italy (Quaglio)
| | - Rubina Sirri
- Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy (Mandrioli, Sirri, Gustinelli, Sarli, Chiocchetti)
- Department of Comparative Biomedicine and Food Science, University of Padua, Agripolis, Viale dell’Università 16, Legnaro, Padua, Italy (Quaglio)
| | - Andrea Gustinelli
- Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy (Mandrioli, Sirri, Gustinelli, Sarli, Chiocchetti)
- Department of Comparative Biomedicine and Food Science, University of Padua, Agripolis, Viale dell’Università 16, Legnaro, Padua, Italy (Quaglio)
| | - Francesco Quaglio
- Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy (Mandrioli, Sirri, Gustinelli, Sarli, Chiocchetti)
- Department of Comparative Biomedicine and Food Science, University of Padua, Agripolis, Viale dell’Università 16, Legnaro, Padua, Italy (Quaglio)
| | - Giuseppe Sarli
- Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy (Mandrioli, Sirri, Gustinelli, Sarli, Chiocchetti)
- Department of Comparative Biomedicine and Food Science, University of Padua, Agripolis, Viale dell’Università 16, Legnaro, Padua, Italy (Quaglio)
| | - Roberto Chiocchetti
- Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy (Mandrioli, Sirri, Gustinelli, Sarli, Chiocchetti)
- Department of Comparative Biomedicine and Food Science, University of Padua, Agripolis, Viale dell’Università 16, Legnaro, Padua, Italy (Quaglio)
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