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Abstract
A large, firm, multi-cystic mammary gland mass grew slowly over 4 y in a 12-y-old, female Finn-Shetland cross sheep. A diagnosis of epithelial malignancy was suspected following fine-needle aspiration cytology at 30 mo after initial observation. The sheep was euthanized when the flock was downsized 18 mo later. A field postmortem examination revealed a large mammary mass, but an absence of metastases to internal organs. Imprint cytology of the mammary tissue supported a benign proliferative process. Histologically, mammary tissue was obliterated by cystic, tubular, and papillary adenomatous arrangements of mammary epithelium, with an anaplastic component, consistent with mammary carcinoma arising in an adenoma. IHC showed strong nuclear positivity to the antibody against progesterone receptor and minimal positivity to the antibody against estrogen receptor alpha expression. Intrinsic subtyping for basal or luminal epithelial origin was attempted through adaptation of companion animal IHC classification panels; high- and low-molecular-weight cytokeratins (CK5, CK8, CK18) failed to stain, but p63 expression for basal epithelium was positive.
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Affiliation(s)
- Shelley J. Newman
- Veterinary Biomedical Sciences, College of Veterinary
Medicine, Long Island University, Brookville, NY
| | - Stephen A. Smith
- Department of Biomedical Sciences and Pathobiology,
Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA
| | - Kurt Zimmerman
- Department of Biomedical Sciences and Pathobiology,
Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA
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Linton JK, Heller MC, Bender SJ, Stefanovski D, Fecteau ME. Neoplasia of the tubular genital tract in 42 goats. J Am Vet Med Assoc 2020; 256:808-813. [PMID: 32176579 DOI: 10.2460/javma.256.7.808] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To assess the prevalence of tubular genital tract neoplasia in does evaluated at 2 veterinary teaching hospitals; describe the main clinical, surgical, and histopathologic or necropsy findings in affected does; and assess factors potentially associated with short-term prognosis in these animals. ANIMALS 42 does. PROCEDURES Medical records of 2 veterinary teaching hospitals were searched to identify does with neoplasia of the tubular genital tract. Signalment; history; physical and diagnostic imaging results; biopsy, surgery, and necropsy findings; and short-term outcome were recorded. Age and breed frequencies for the sample were compared with those of the overall hospital population, and variables of interest were tested for associations with a diagnosis of adenocarcinoma and with short-term outcome by statistical methods. RESULTS Median age at hospital admission (10 years) was greater for the study sample than for the general hospital population (2 years). Pygmy goats were overrepresented (22/42 [52%]). Common reasons for evaluation were bloody vaginal discharge or hematuria and abdominal straining. Adenocarcinoma (13/42 [31%]), leiomyoma (13 [31%]), and leiomyosarcoma (11 [26%]) were the most common tumors. Does with distant metastasis had greater odds of a diagnosis of adenocarcinoma (OR, 40.5) than does without distant metastasis. In the analysis adjusted for hemorrhagic discharge, odds of euthanasia for does with straining were 13 times those for does without straining. In the analysis adjusted for straining status, does with hemorrhagic discharge had almost 7 times the odds of euthanasia for does without this finding. The survival-to-discharge rate was low (13/42 [31%]). CONCLUSIONS AND CLINICAL RELEVANCE The frequency of adenocarcinomas in the study sample was unexpectedly high. Further research is needed to confirm the study findings.
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Hananeh WM, Ismail ZB, Daradka MH. Tumors of the reproductive tract of sheep and goats: A review of the current literature and a report of vaginal fibroma in an Awassi ewe. Vet World 2019; 12:778-782. [PMID: 31439993 PMCID: PMC6661476 DOI: 10.14202/vetworld.2019.778-782] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 04/18/2019] [Indexed: 01/17/2023] Open
Abstract
Aims This study aimed to provide a summary of all online available literature of published clinical and histopathological data regarding tumors affecting the reproductive tract of female sheep and goats. In addition, a detailed description of the clinical history, clinical findings, and gross and histopathological findings of one case of vaginal fibroma in an adult Awassi sheep is provided for the first time. Materials and Methods Internet search engines such as PubMed, ResearchGate, Scopus, ScienceDirect, and Google Scholar were used to collect all published articles in refereed journals from 2000 to 2018 regarding tumors and tumor-like lesions involving the reproductive tract of ewes and does. Results There are six published papers in sheep and nine in goats reporting various malignant and non-malignant tumors involving different parts of the reproductive tract. The most commonly diagnosed tumors of the reproductive tract were leiomyoma (six cases), adenocarcinoma (six cases), leiomyosarcoma (three cases), adenoma (one case), squamous cell carcinoma (one case), and metastatic signet ring cell carcinoma (one case). The most common sites of tumor formation were the uterus (10 cases), vulva/vagina (five cases), ovaries (four cases), cervix (four cases), and Bartholin's gland (one case). All affected animals were aged females (older than 3 years of age). In both ewes and does, the most frequently reported clinical symptoms were chronic weight loss, pyometra, hydrometra, vaginal bleeding, abnormal vaginal discharges, straining, pollakisurie, ascites, and abdominal distension. Conclusions Tumors of the reproductive organs in sheep and goats are not uncommon and should be considered in the differential diagnoses in cases with poor reproductive function.
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Affiliation(s)
- Wael M Hananeh
- Department of Pathology and Public Health, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Zuhair B Ismail
- Department of Clinical Veterinary Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Mousa H Daradka
- Department of Clinical Veterinary Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan
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Cossic B, Hill JA, Cercone M, Southard T. Uterine carcinosarcoma (malignant mixed Müllerian tumor): case report in a goat and literature review. J Vet Diagn Invest 2018; 30:955-961. [PMID: 30345891 DOI: 10.1177/1040638718808341] [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: 11/16/2022] Open
Abstract
Carcinosarcomas are biphasic malignant tumors composed of 2 distinct neoplastic cell populations, epithelial cells and mesenchymal cells. A 13-y-old, female, mixed-breed goat was presented with a 1-wk history of anuria and lethargy. Transabdominal ultrasonography showed an irregular and heterogeneous structure in the region of the bladder and uterus and changes in the echogenicity of both kidneys. Given the poor prognosis, euthanasia was elected. Autopsy revealed a large mass within the uterine cervix and confirmed the changes in the urinary tract. Histopathology and immunohistochemistry revealed a mixed, anti-cytokeratin AE1/AE3-positive epithelial, and vimentin-positive mesenchymal neoplasm consistent with a homologous carcinosarcoma, also called malignant mixed Müllerian tumor, with areas of double-labeling. We highlight the complexity of the diagnosis of uterine neoplasms in domestic animals and in goats in particular.
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Affiliation(s)
- Brieuc Cossic
- Departments of Biomedical Sciences (Cossic, Southard), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Clinical Sciences (Hill, Cercone), College of Veterinary Medicine, Cornell University, Ithaca, NY
| | - Jacqueline A Hill
- Departments of Biomedical Sciences (Cossic, Southard), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Clinical Sciences (Hill, Cercone), College of Veterinary Medicine, Cornell University, Ithaca, NY
| | - Marta Cercone
- Departments of Biomedical Sciences (Cossic, Southard), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Clinical Sciences (Hill, Cercone), College of Veterinary Medicine, Cornell University, Ithaca, NY
| | - Teresa Southard
- Departments of Biomedical Sciences (Cossic, Southard), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Clinical Sciences (Hill, Cercone), College of Veterinary Medicine, Cornell University, Ithaca, NY
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Dockweiler JC, Cossic B, McDonough SP, Fubini SL, Le KM, Donnelly CG, Gilbert RO, Cheong SH. Tumor collision of uterine adenocarcinoma and leiomyosarcoma in a goat. J Vet Diagn Invest 2017; 29:696-699. [PMID: 28423988 DOI: 10.1177/1040638717705411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
An aged mixed-breed goat doe was presented with a 9-mo history of serosanguineous vaginal discharge. Vaginal speculum examination revealed serosanguineous discharge but otherwise no abnormalities. Transrectal ultrasonography showed normal ovaries and multifocal cystic lesions within the uterus. Ovariohysterectomy was recommended because of a strong suspicion of neoplasia. Multiple, non-resectable masses were noted in and around the uterus intraoperatively, and euthanasia was elected. Autopsy revealed multiple masses within the uterus, cervix, and lung parenchyma. Histologically, the masses within the uterus represented a likely collision tumor of primary adenocarcinoma and leiomyosarcoma. Our report highlights the importance of obtaining biopsy samples of all masses because the lesions described showed significantly different biological behavior. This information is vital to guide treatment and prognosis.
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Affiliation(s)
- Jenna C Dockweiler
- Department of Clinical Sciences (Dockweiler, Fubini, Le, Donnelly, Gilbert, and Cheong), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Department of Biomedical Sciences (Cossic and McDonough), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Ross University School of Veterinary Medicine, St. Kitts, West Indies (Gilbert current).,UC Davis School of Veterinary Medicine, Davis, CA (Donnelly current)
| | - Brieuc Cossic
- Department of Clinical Sciences (Dockweiler, Fubini, Le, Donnelly, Gilbert, and Cheong), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Department of Biomedical Sciences (Cossic and McDonough), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Ross University School of Veterinary Medicine, St. Kitts, West Indies (Gilbert current).,UC Davis School of Veterinary Medicine, Davis, CA (Donnelly current)
| | - Sean P McDonough
- Department of Clinical Sciences (Dockweiler, Fubini, Le, Donnelly, Gilbert, and Cheong), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Department of Biomedical Sciences (Cossic and McDonough), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Ross University School of Veterinary Medicine, St. Kitts, West Indies (Gilbert current).,UC Davis School of Veterinary Medicine, Davis, CA (Donnelly current)
| | - Susan L Fubini
- Department of Clinical Sciences (Dockweiler, Fubini, Le, Donnelly, Gilbert, and Cheong), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Department of Biomedical Sciences (Cossic and McDonough), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Ross University School of Veterinary Medicine, St. Kitts, West Indies (Gilbert current).,UC Davis School of Veterinary Medicine, Davis, CA (Donnelly current)
| | - Kayla M Le
- Department of Clinical Sciences (Dockweiler, Fubini, Le, Donnelly, Gilbert, and Cheong), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Department of Biomedical Sciences (Cossic and McDonough), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Ross University School of Veterinary Medicine, St. Kitts, West Indies (Gilbert current).,UC Davis School of Veterinary Medicine, Davis, CA (Donnelly current)
| | - Callum G Donnelly
- Department of Clinical Sciences (Dockweiler, Fubini, Le, Donnelly, Gilbert, and Cheong), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Department of Biomedical Sciences (Cossic and McDonough), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Ross University School of Veterinary Medicine, St. Kitts, West Indies (Gilbert current).,UC Davis School of Veterinary Medicine, Davis, CA (Donnelly current)
| | - Robert O Gilbert
- Department of Clinical Sciences (Dockweiler, Fubini, Le, Donnelly, Gilbert, and Cheong), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Department of Biomedical Sciences (Cossic and McDonough), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Ross University School of Veterinary Medicine, St. Kitts, West Indies (Gilbert current).,UC Davis School of Veterinary Medicine, Davis, CA (Donnelly current)
| | - Soon Hon Cheong
- Department of Clinical Sciences (Dockweiler, Fubini, Le, Donnelly, Gilbert, and Cheong), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Department of Biomedical Sciences (Cossic and McDonough), College of Veterinary Medicine, Cornell University, Ithaca, NY.,Ross University School of Veterinary Medicine, St. Kitts, West Indies (Gilbert current).,UC Davis School of Veterinary Medicine, Davis, CA (Donnelly current)
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Yi JY, Kim YH, Yoon BI. Primary subcutaneous leiomyosarcoma of the hamster hind leg. J Vet Med Sci 2008; 70:517-20. [PMID: 18525178 DOI: 10.1292/jvms.70.517] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We report the first case of a primary subcutaneous leiomyosarcoma that originated in the hind leg of a hamster and metastasized to the bone marrow, lung and diaphragm. A 10-month-old female Syrian golden hamster was presented with a large, firm, white subcutaneous mass in the right hind leg. The tumor invaded into the bone marrow and small nodules were also present in the lung and diaphragm; however, no tumor masses were found in the visceral organs. Histologically, the tumors were spindle cell sarcomas, composed of densely packed pleomorphic spindle cells with oval to elongate nuclei and moderate amounts of eosinophilic cytoplasm. Immunohistochemically, the neoplastic cells were positive for vimentin, desmin, and smooth muscle actin, but negative for alpha-sarcomeric actin and S-100. Thus, the diagnosis was primary leiomyosarcoma of the hind leg with metastasis to the bone marrow, lung and diaphragm. To the best of our knowledge, this is the first report of spontaneous primary subcutaneous leiomyosarcoma of the hind leg with distant metastasis in laboratory animals.
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Affiliation(s)
- Jung-Yeon Yi
- School of Veterinary Medicine, Kangwon National University, Chuncheon, Gangwon, Republic of Korea
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