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Cocchi M, Foiani G, Melchiotti E, Feliziani F, De Zan G. Multicentric malignant round cell tumour in a cria: Clinical presentation, pathologic findings and differential diagnoses. VETERINARY RECORD CASE REPORTS 2023. [DOI: 10.1002/vrc2.596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Monia Cocchi
- Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università Legnaro(PD) Italy
| | - Greta Foiani
- Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università Legnaro(PD) Italy
| | - Erica Melchiotti
- Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università Legnaro(PD) Italy
| | - Francesco Feliziani
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche Perugia(PG) Italy
| | - Gabrita De Zan
- Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università Legnaro(PD) Italy
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Schoiswohl J, Eibl C, Haralambus R, Lipnik K, Schieder K, Franz S. T-cell-lymphoma presented as a solitary subcutaneous mass in the ventral cervical region of an adult llama- diagnostic and treatment. BMC Vet Res 2022; 18:62. [PMID: 35105366 PMCID: PMC8805260 DOI: 10.1186/s12917-022-03158-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/20/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Neoplasm in South American camelids (SAC) are commonly described. The most frequently reported type of neoplasm are lymphomas and difference in the age suffering from lymphomas of and llamas is seen. This report describes a case of a solitary lymphoma in a 5 years and 9 month old llama mare displaying the approach of diagnostic imaging and successful surgical treatment. CASE PRESENTATION The llama was referred to the clinic for dyspnoea and inspiratory abnormal respiratory sounds. The clinical examination comprised blood cell count, ultrasonographic and radiographic examinations, endoscopy and fine needle aspiration cytology of a mass detected in the mid cervical region. The mass was surgically removed. Histopathological examination of the surgically removed mass diagnosed a malignant T-cell- lymphoma. According to the results of the clinical, ultrasonographic and radiographic examinations no tumor invasion was apparent in distant organs and the llama was discharged from the clinic seven days after surgery. CONCLUSION Lymphoma has been reported to be the most common neoplasia in camelids and are more often described in young alpacas and in adult llamas. To the author´s knowledge the case presented here is the first that described a broad panel of diagnostic tools including ultrasound, radiographs, endoscopy, fine needle aspiration cytology and histopathoogical examination as well as a successful surgical treatment of a solitary lymphoma in camelids.
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Affiliation(s)
- Julia Schoiswohl
- Department for Farm Animals and Veterinary Public Health, University Clinic for Ruminants, University of Veterinary Medicine Vienna, Veterinärpl. 1, 1210, Vienna, Austria.
| | - Cassandra Eibl
- Department for Farm Animals and Veterinary Public Health, University Clinic for Ruminants, University of Veterinary Medicine Vienna, Veterinärpl. 1, 1210, Vienna, Austria
| | - Rhea Haralambus
- Department/Hospital for Companion Animals and Horses, University Clinic for Ruminants, University of Veterinary Medicine Vienna, Veterinärpl. 1, 1210, Wien, Austria
| | - Karoline Lipnik
- Institute of Pathology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinärpl. 1, 1210, Vienna, Austria
| | - Katrin Schieder
- Diagnostic Imaging, Department for Companion Animals and Horses, University of Veterinary Medicine Vienna, Veterinärpl. 1, 1210, Vienna, Austria
| | - Sonja Franz
- Department for Farm Animals and Veterinary Public Health, University Clinic for Ruminants, University of Veterinary Medicine Vienna, Veterinärpl. 1, 1210, Vienna, Austria
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Aboellail TA, Waugh M, Harvey A, Fisher J, Vilander AC. Neoplasia and Proliferative Lesions of New World Camelids: A Systematic Literature Review and Retrospective Study of Cases Submitted to Colorado State University From 1995 to 2020. Front Vet Sci 2021; 8:743498. [PMID: 34746283 PMCID: PMC8569619 DOI: 10.3389/fvets.2021.743498] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 09/13/2021] [Indexed: 11/25/2022] Open
Abstract
Camelid pathology submissions to veterinary diagnostic laboratories are on the rise given the increasing popularity and population of llamas and alpacas especially in the western United States. When compared to other animals, the field of camelid neoplasia has a relative paucity of cases reported in the literature. The Colorado State University Veterinary Diagnostic Laboratories (CSU-VDL) has had a steady increase in the numbers of camelid pathology submissions allowing for a robust review of diagnoses of neoplasia in new world camelids. Here we present a retrospective analysis of camelid neoplastic and proliferative lesions diagnosed at the CSU-VDL from 1995 to 2020, followed by an extensive literature review. Results show increasing incidence of camelid neoplasia reported in the literature, therefore becoming a common diagnosis in llamas and alpacas. Proliferative and neoplastic lesions were diagnosed in 8.8% of new world camelid submissions to CSU-VDL with the most common tumors being lymphomas, squamous cell carcinomas, fibromas, and adenocarcinomas. Risk factors are female sex and increased age except in the case of lymphoma, which tends to occur in younger camelids. Lymphomas, melanomas, and adenocarcinomas (especially of gastrointestinal tract) carry an increased risk of multiple-organ system involvement often with widespread metastases. Conditions described in camelids for the first time include osteosarcoma, cutaneous hemangiosarcoma, myxosarcoma, pilomatricoma, ovarian theca cell tumor, congenital nevus with malignant transformation, and various other neoplasia. This article will provide an operational guide for camelid neoplasia to further assist veterinary laboratory diagnosticians, researchers, and practicing veterinarians in the field of camelid medicine and pathology.
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Affiliation(s)
- Tawfik A Aboellail
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Max Waugh
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Alexandra Harvey
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jade Fisher
- Antech Diagnostics, Fountain Valley, CA, United States
| | - Allison C Vilander
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
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Marchionatti E, Van der Vekens E, Peters LM, Kaiponen TS, Berenguer Veiga I, Zanolari P. Solitary tracheal B-cell lymphoma in an adult alpaca (Vicugna pacos). BMC Vet Res 2020; 16:429. [PMID: 33167982 PMCID: PMC7653881 DOI: 10.1186/s12917-020-02640-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 10/23/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This report describes a case of solitary tracheal lymphoma in a 14-year-old alpaca mare. CASE PRESENTATION The alpaca was referred for dyspnea and inspiratory noise. The clinical examination included complete blood cell count, blood chemistry, endoscopy, ultrasound, radiographs, and computed tomography (CT). A solitary tracheal intraluminal and juxtatracheal lymphoma was diagnosed by fine needle aspiration (FNA). The owner requested euthanasia due to the uncertain prognosis. At postmortem examination, the presence of solitary lymphoma without involvement of other organs was confirmed. Immunohistochemical analysis confirmed a B-cell origin. CONCLUSIONS Although multicentric lymphoma is the most commonly described neoplasia affecting South American camelids (SAC), solitary forms of the disease may occur.
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Affiliation(s)
- Emma Marchionatti
- Clinic for Ruminants, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109A, 3012, Bern, Switzerland.
| | - Elke Van der Vekens
- Clinical Radiology, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Länggassstrasse 124, 3012, Bern, Switzerland
| | - Laureen Michèle Peters
- Clinical Laboratory, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Länggassstrasse 124, 3012, Bern, Switzerland
| | - Taina Susanna Kaiponen
- Institute for Veterinary Pathology, Vetsuisse Faculty, University of Bern, Länggassstrasse 122, 3012, Bern, Switzerland
| | - Inês Berenguer Veiga
- Institute for Veterinary Pathology, Vetsuisse Faculty, University of Bern, Länggassstrasse 122, 3012, Bern, Switzerland
| | - Patrik Zanolari
- Clinic for Ruminants, Department of Clinical Veterinary Medicine, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109A, 3012, Bern, Switzerland
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Abstract
New world (NW) camelids, alpaca, llama, vicuña, and guanaco, and old world (OW) camelids, Bactrian and dromedary camels are related and have many of the same anatomical features and disease susceptibilities though they are also very different. Only the free-ranging population of wild Bactrian camel is endangered. Bactrian camels held in zoos are generally of domestic origin. Vicuña are listed as vulnerable. In addition to those camelids held in captivity, there are domesticated populations of camelids (except vicuña and guanaco) maintained throughout the world. Most are fairly hardy animals, but there are some specific disease concerns. Domesticated llamas and alpacas have become hobby pets and thus management and genetic issues are an increasing source of disease. These include obesity, vitamin and mineral deficiencies and intoxications, metabolic derangements, and congenital malformations (particularly in the young). Domesticated animals are also more prone to degenerative arthropathy and dental disease as they age than wild camelids. Ovarian hydrobursitis is an important source of infertility in dromedaries. Important infectious diseases include coccidiosis, bovine viral diarrhea virus, alpaca fever, and meningeal worm of NW camelids, trypanosomiasis and camelpox in OW camels, and foot and mouth disease in Bactrian camels and NW camelids. These and other disease processes are discussed in this chapter.
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Abstract
Lymphoma has been described in individual cases for goats but not systematically characterized in a larger cohort. This study aimed to subtype caprine lymphoma based on topographic and subgross distribution, immunophenotype, and cellular morphology following the World Health Organization classification system for hematopoietic tumors in domestic animals. Fifteen caprine lymphoma cases were assessed with 6 submitted as biopsy and 9 for postmortem examination. Goats were predominantly young adult (median 3 years) and dwarf breeds (Pygmy and Pygora). The sexes were similarly represented. Nuclear size was measured relative to red blood cells (RBCs) and then adjusted for species-specific differences and designated small (<3× RBCs), intermediate (3-4× RBCs), or large (>4× RBCs). Using immunohistochemistry, 11 of 15 (73%) goats had T-cell lymphoma (TCL; CD3 positive, CD79α negative) and 4 of 15 (27%) had B-cell lymphoma (BCL; CD79α positive, CD3 negative). A multicentric distribution was most common. TCL generally involved the thoracic cavity and/or neck, suggestive of thymic origin or homing. TCLs were further classified as lymphoblastic lymphomas (3/11; 27%), large granular lymphocyte lymphoma (1/11; 9%), diffuse small lymphocytic lymphomas (3/11; 27%), or peripheral/mature T-cell lymphoma (PTCL) not otherwise specified (4/11 [36%], of which 3 were high grade and 1 intermediate grade). In 1 goat with PTCL, lymph nodes had either paracortical expansion or diffuse infiltrates suggesting transition from nodular to diffuse PTLC. BCLs were classified as diffuse large B-cell lymphoma (2/4; 50%) or B-cell lymphocytic lymphoma intermediate type (2/4; 50%). In contrast to dogs and horses, lymphomas in goats are predominantly TCL and frequently involve the mediastinum.
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Affiliation(s)
- Patti K Kiser
- 1 Department of Biomedical Sciences, Oregon Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA
| | - Christiane V Löhr
- 1 Department of Biomedical Sciences, Oregon Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA
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Hasbach AE, Stern AW. Pagetoid reticulosis (epitheliotropic cutaneous T-cell lymphoma) in an adult alpaca (Vicugna pacos). J Vet Diagn Invest 2016; 28:469-72. [PMID: 27154316 DOI: 10.1177/1040638716645833] [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: 12/22/2022] Open
Abstract
A 9-year-old, intact female alpaca (Vicugna pacos) was presented for a second opinion with a 1-year history of nonpruritic, multifocal scaling and crusted cutaneous lesions, mainly involving skin on the face, axillae, and ventral abdomen. Clinical abnormalities were limited to the skin, and the alpaca was otherwise healthy. The initial veterinarian had examined the alpaca, found no evidence of ectoparasites with laboratory testing, and had tried several trial therapies including oral antibiotics, ivermectin, and topical use of betadine solution. At the time of presentation, the lesions had neither improved nor worsened with any attempted therapy, and multiple skin biopsies were collected. Histopathology and immunohistochemical staining findings were consistent with the pagetoid reticulosis type of cutaneous epitheliotropic T-cell lymphoma. Our report describes the clinical, histopathologic, and immunophenotypic features of pagetoid reticulosis epitheliotropic cutaneous T-cell lymphoma in an alpaca.
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Affiliation(s)
- Andrea E Hasbach
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI (Hasbach)Department of Pathobiology and the Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Illinois, Urbana, IL (Stern)
| | - Adam W Stern
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI (Hasbach)Department of Pathobiology and the Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Illinois, Urbana, IL (Stern)
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Sorensen NJ, Allison RW. What is your diagnosis? Abdominal fluid from an adult alpaca. Vet Clin Pathol 2015; 44:459-60. [PMID: 25899216 DOI: 10.1111/vcp.12260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Nicholas J Sorensen
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK, USA
| | - Robin W Allison
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK, USA
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Abstract
Interpretation of camelid hematology results is similar to that of other mammals. Obtaining accurate results and using appropriate reference intervals can be a bit problematic, particularly when evaluating the erythron. Camelid erythrocytes vary from other mammals in that they are small, flat, and elliptical. This variation makes data obtained from samples collected from these species prone to error when using some automated instruments. Normal and abnormal findings in camelid blood are reviewed as well as how to ensure accurate results.
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Affiliation(s)
- Linda Vap
- Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523-1610, USA.
| | - Andrea A Bohn
- Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523-1610, USA
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Twomey DF, Wu G, Nicholson R, Watson EN, Foster AP. Review of laboratory submissions from New World camelids in England and Wales (2000-2011). Vet J 2014; 200:51-9. [PMID: 24721312 DOI: 10.1016/j.tvjl.2014.01.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 01/27/2014] [Accepted: 01/29/2014] [Indexed: 11/29/2022]
Abstract
Sample submissions to the Animal Health and Veterinary Laboratories Agency's (AHVLA's) diagnostic laboratory network in England and Wales were reviewed for diseases affecting New World camelids (NWCs). In the years 2000-2011, 6757 submissions were analysed, including 5154/6757 (76.3%) for diagnosing a disease problem and 1603/6757 (23.7%) for monitoring (no clinical disease). Wasting (weight loss, ill-thrift) was the most commonly reported clinical sign across all age groups. A diagnosis was reached for 1765/5154 (34.2%) diagnostic submissions. The proportion of submissions with diagnoses was higher for carcasses than non-carcass samples and multiple diagnoses were more likely to be reached from carcasses. Parasitic diseases were collectively the most common problem, including parasitic gastroenteritis (319/1765, 18.2%), coccidiosis (187/1765, 10.6%), fascioliasis (151/1765, 8.6%), ectoparasitic infestations (86/1765, 4.9%) and cryptosporidiosis (24/1765, 1.4%). The most frequently diagnosed non-parasitic problems included nutritional diseases (182/1765, 10.3%), septicaemia (104/1765, 5.9%, including 45 cases of colisepticaemia), gastric ulceration (79/1765, 4.5%), tumours/neoplastic diseases (65/1765, 3.7%), tuberculosis (57/1765, 3.2%), clostridial diseases (44/1765, 2.5%), congenital anomalies (41/1765, 2.3%), peritonitis (39/1765, 2.2%) and Johne's disease (20/1765, 1.1%).
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Affiliation(s)
- D F Twomey
- Animal Health and Veterinary Laboratories Agency, Starcross Regional Laboratory, Staplake Mount, Starcross, Exeter, Devon EX6 8PE, UK.
| | - G Wu
- Animal Health and Veterinary Laboratories Agency, Epidemiology, Surveillance and Risk Analysis Group, Addlestone, Surrey KT15 3NB, UK
| | - R Nicholson
- Animal Health and Veterinary Laboratories Agency, Data Systems Group, Addlestone, Surrey KT15 3NB, UK
| | - E N Watson
- Animal Health and Veterinary Laboratories Agency, Epidemiology, Surveillance and Risk Analysis Group, Addlestone, Surrey KT15 3NB, UK
| | - A P Foster
- Animal Health and Veterinary Laboratories Agency, Shrewsbury Regional Laboratory, Kendal Road, Harlescott, Shrewsbury, Shropshire SY1 4HD, UK
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Edginton HD, Peters-Kennedy J, Scott DW. Resident lymphocytes in the dermis of the normal dorsolateral thoracic skin of alpacas. Vet Dermatol 2014; 25:42-e15. [PMID: 24382011 DOI: 10.1111/vde.12103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Small numbers of resident T lymphocytes are present in the dermis of normal skin of humans, cattle and sheep. HYPOTHESIS/OBJECTIVES We wanted to determine the prevalence, numbers and immunophenotype of lymphocytes in the dermis of healthy skin from alpacas. ANIMALS Skin biopsy specimens were collected from the dorsolateral thorax of 31 alpacas with normal skin. METHODS Skin biopsy specimens were evaluated for the prevalence and numbers of CD3+ and CD79a+ lymphocytes. RESULTS Resident CD3+ and CD79a+ lymphocytes were found around the superficial and deep dermal blood vessels. The CD3+ lymphocytes were more numerous than CD79a+ lymphocytes. Both CD3+ and CD79a+ lymphocytes were more numerous around superficial dermal blood vessels. CONCLUSIONS AND CLINICAL IMPORTANCE Resident CD3+ and CD79a+ lymphocytes are present around superficial and deep dermal blood vessels in normal skin from alpacas; hence, the presence of lymphocytes in these locations without obvious features of inflammation must be interpreted cautiously when evaluating skin biopsy specimens from alpacas with skin disease.
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Affiliation(s)
- Heather D Edginton
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
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Affiliation(s)
- Fabio B Rosa
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
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Aboellail TA. Pathologic and immunophenotypic characterization of 26 camelid malignant round cell tumors. J Vet Diagn Invest 2013; 25:168-72. [PMID: 23293163 DOI: 10.1177/1040638712471059] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Lymphoma and/or leukemia was diagnosed in 26 camelids (20 alpacas and 6 llamas) out of 110 camelid neoplasia archived January 1995 through January 2012 at the Colorado State Veterinary Diagnostic Laboratories (CSU-VDL). Some of the tumors presented a diagnostic challenge because they could not be distinguished on the basis of gross or microscopic morphology. Immunohistochemistry using a T-cell marker (cluster of differentiation [CD]3), a B-cell marker (paired box protein [PAX]-5), a leukocyte integrin beta-2 marker (CD18), and a neuroendocrine marker (synaptophysin) was employed to help differentiate between lymphoma and other malignant round cell tumors. Alpaca lymphomas presented as either juvenile disseminated lymphoma in crias ≤ 2 years of age (n = 8) or adult multicentric lymphoma and/or leukemia (n = 12). Lymphomas in alpacas were of T-cell origin (n = 13), non-B-cell, non-T-cell origin (n = 4), B-cell origin (n = 2), or myelogenous leukemia (n = 1). Abdominal organs, predominantly the liver, were commonly involved in both the crias and adult alpacas. Lymphomas in llamas presented as either adult multicentric lymphoma of B-cell origin in animals younger than 7 years of age (n = 2), or T-cell lymphoma (n = 2), and non-B-cell, non-T-cell lymphoma (n = 1) in animals 7 years of age or older. The thorax was commonly involved in llamas, with infiltration of neoplastic cells into hilar and mediastinal lymph nodes. A rare type of lymphoma diagnosed in the llamas was cutaneous, epitheliotrophic T-cell lymphoma (n = 1).
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Affiliation(s)
- Tawfik A Aboellail
- Veterinary Diagnostic Laboratories, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, 300 W. Drake Street, Fort Collins, CO 80523, USA.
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Bildfell RJ, Löhr CV, Tornquist SJ. Diagnostic sampling and gross pathology of New World camelids. Vet Clin North Am Food Anim Pract 2012; 28:577-91. [PMID: 23101677 PMCID: PMC7125673 DOI: 10.1016/j.cvfa.2012.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Robert J Bildfell
- Department of Biomedical Sciences, Oregon State University College of Veterinary Medicine, Corvallis, OR 97331, USA.
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Taulescu MA, Bolfă PF, Buiga R, Gal AF, Sevastre B, Morar I, Cătoi C. Metastatic cholangiocarcinoma in a llama (Lama glama). J Vet Diagn Invest 2012; 24:986-9. [DOI: 10.1177/1040638712452110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
A 2-year-old female llama ( Lama glama), from a private zoological park, with anorexia, ataxia, dyspnea, ascites, and emaciation, was necropsied. Gross inspection, and cytological, histological, and immunohistochemical analyses were performed. A firm, white, multinodular mass, 25 cm in diameter was found in the liver parenchyma. Similar nodules up to 3 cm were found in lymph nodes, lung, diaphragm, and peritoneum. Histologically, the affected organs were replaced by an infiltrative growth of undifferentiated neoplastic cells. Immunohistochemically, neoplastic cells were positive for pancytokeratin (panCK), CK20, and CK19, and negative for thyroid transcription factor 1, CK7, and carcinoembryonic antigen. A diagnosis of poorly differentiated metastatic cholangiocarcinoma was made.
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Affiliation(s)
- Marian A. Taulescu
- Pathology Department (Taulescu, Bolfă, Gal, Cătoi)
- Pathophysiology Department (Sevastre)
- Department of Reproduction, Obstetrics and Veterinary Gynecology (Iancu)
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania; and the Pathology Department, Ioan Chiricuta Oncology Institute, Cluj-Napoca, Romania (Buiga)
| | - Pompei F. Bolfă
- Pathology Department (Taulescu, Bolfă, Gal, Cătoi)
- Pathophysiology Department (Sevastre)
- Department of Reproduction, Obstetrics and Veterinary Gynecology (Iancu)
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania; and the Pathology Department, Ioan Chiricuta Oncology Institute, Cluj-Napoca, Romania (Buiga)
| | - Rareş Buiga
- Pathology Department (Taulescu, Bolfă, Gal, Cătoi)
- Pathophysiology Department (Sevastre)
- Department of Reproduction, Obstetrics and Veterinary Gynecology (Iancu)
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania; and the Pathology Department, Ioan Chiricuta Oncology Institute, Cluj-Napoca, Romania (Buiga)
| | - Adrian F. Gal
- Pathology Department (Taulescu, Bolfă, Gal, Cătoi)
- Pathophysiology Department (Sevastre)
- Department of Reproduction, Obstetrics and Veterinary Gynecology (Iancu)
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania; and the Pathology Department, Ioan Chiricuta Oncology Institute, Cluj-Napoca, Romania (Buiga)
| | - Bogdan Sevastre
- Pathology Department (Taulescu, Bolfă, Gal, Cătoi)
- Pathophysiology Department (Sevastre)
- Department of Reproduction, Obstetrics and Veterinary Gynecology (Iancu)
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania; and the Pathology Department, Ioan Chiricuta Oncology Institute, Cluj-Napoca, Romania (Buiga)
| | - Iancu Morar
- Pathology Department (Taulescu, Bolfă, Gal, Cătoi)
- Pathophysiology Department (Sevastre)
- Department of Reproduction, Obstetrics and Veterinary Gynecology (Iancu)
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania; and the Pathology Department, Ioan Chiricuta Oncology Institute, Cluj-Napoca, Romania (Buiga)
| | - Cornel Cătoi
- Pathology Department (Taulescu, Bolfă, Gal, Cătoi)
- Pathophysiology Department (Sevastre)
- Department of Reproduction, Obstetrics and Veterinary Gynecology (Iancu)
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania; and the Pathology Department, Ioan Chiricuta Oncology Institute, Cluj-Napoca, Romania (Buiga)
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Lin TY, Hamberg A, Pentecost R, Wellman M, Stromberg P. Mast cell tumors in a llama (Lama glama). J Vet Diagn Invest 2010; 22:808-11. [PMID: 20807950 DOI: 10.1177/104063871002200531] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
A 9-year-old female llama (Lama glama) that served as a blood donor at The Ohio State University Veterinary Teaching Hospital developed multiple small, raised, firm, non-haired cutaneous masses on the right hip, left cheek, and right and left shoulders. Cytological evaluation of fine-needle aspirates from the cutaneous mass from the left shoulder and right hip comprised many well-differentiated, highly granulated mast cells with moderate numbers of eosinophils. Occasional mast cells exhibited erythrophagocytosis and contained a small amount of hemosiderin or several variably sized vacuoles. A cytologic diagnosis of mast cell tumor with evidence of prior hemorrhage was made, and the masses were surgically removed. Microscopically, each mass consisted of sheets of neoplastic round cells that formed nonencapsulated nodules in the dermis and infiltrated into the adjacent dermal collagen. Eosinophils were scattered among the mast cells at the periphery of the nodules. Neoplastic mast cells, but not eosinophils, exhibited positive membrane KIT expression and cytoplasmic vimentin staining. A final diagnosis of mast cell tumor was made based on cytology, histology, and immunohistochemistry.
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Affiliation(s)
- Tzu-Yin Lin
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA.
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Amory JT, Jones JC, Crisman MV, Zimmerman K, Tyson AR, Larson MM, Saunders GK, O'Rourke LG. Imaging diagnosis--Dorsal mediastinal T-cell lymphoma in an alpaca. Vet Radiol Ultrasound 2010; 51:311-2. [PMID: 20469554 DOI: 10.1111/j.1740-8261.2010.01666.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
A 14-year-old male alpaca had refractory pleural effusion. The cause of the effusion was not apparent either radiographically or sonographically, or following a pleural fluid cytologic examination. Using computed tomographic (CT) examination, a dorsal paravertebral mass was identified and similar masses were found in the cranial mediastinum, retroperitoneal space, and adjacent to the hepatic entry of the portal vein. The histopathologic diagnosis was multicentric T-cell lymphoma. CT examination may prove to be a valuable imaging modality in the localization and staging of neoplasia in new world camelids.
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Affiliation(s)
- Joseph T Amory
- Department of Small Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Duck Pond Drive (0442), Blacksburg, Virginia 24061, USA.
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