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Sirivisoot S, Siripara N, Arya N, Techangamsuwan S, Rungsipipat A, Kasantikul T. Case report: Mature extragonadal teratoma at the proximal part of the tail in a kitten. Front Vet Sci 2022; 9:1003673. [PMID: 36478948 PMCID: PMC9720392 DOI: 10.3389/fvets.2022.1003673] [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: 07/26/2022] [Accepted: 11/08/2022] [Indexed: 10/17/2023] Open
Abstract
An 8-month-old, intact male, domestic shorthair cat was referred for a mass on the proximal ventral part of the tail which had been found since the animal was born, and due to the presence of a linear fissure with rows of ectopic teeth, the veterinarian suspected that the mass had recently ruptured. Tail amputation was elected and the entire mass was successfully surgically excised. From the gross examination, this mass had an open cyst-like structure with a prominent area composed of hair, teeth, and bone. Histopathology revealed two components of germinal layers including hair follicles, adnexal tissue, neural tissue, teeth, muscle, fat, bone, and lymphatic vessels. The histopathological diagnosis was consistent to mature teratoma. Although, complete excision could not be definitively confirmed histologically, this kitten is currently well and has not developed any recurrent mass at the surgical site after 2 years of post-operation.
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Affiliation(s)
- Sirintra Sirivisoot
- Center of Excellence for Companion Animal Cancer, Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | | | - Nlin Arya
- Department of Pre-Clinic and Applied Animal Science, Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - Somporn Techangamsuwan
- Center of Excellence for Companion Animal Cancer, Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Anudep Rungsipipat
- Center of Excellence for Companion Animal Cancer, Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Tanit Kasantikul
- Clemson Veterinary Diagnostic Center, Clemson University, Columbia, SC, United States
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Zeng J, Starost MF, Mauda-Havakuk M, Mikhail AS, Partanen A, Wood BJ, Karanian JW, Pritchard WF. Ovarian teratoma in a woodchuck (Marmota monax) with hepatocellular carcinoma: radiologic and pathologic features. BMC Vet Res 2020; 16:451. [PMID: 33228678 PMCID: PMC7685576 DOI: 10.1186/s12917-020-02658-z] [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: 05/04/2020] [Accepted: 10/30/2020] [Indexed: 11/10/2022] Open
Abstract
Background Teratomas are germ cell neoplasms composed of a wide variety of tissues. In the woodchuck, only one testicular teratoma has been described in the literature. The objective of this report was to describe the radiologic and pathologic findings in a female woodchuck (Marmota monax) with an ovarian teratoma consisting of mature tissues originating from all three germ layers. Case presentation A 2-year-old female woodchuck that had been infected at birth with woodchuck hepatitis virus and subsequently developed hepatocellular carcinoma was incidentally discovered to have a mobile 6.6 × 4.8 × 4.7 cm abdominal mass on computed tomography (CT) imaging. The tumor was predominantly solid and heterogenous on CT with soft tissue, fat, and areas of dense calcification. The teratoma did not enhance with intravenous contrast administration. On ultrasound, the tumor was solid with heterogeneous echogenicity, reflecting the fat content and areas of calcification. Sonolucent areas were present that may have represented cysts. There was heterogeneously increased signal on T1-weighted magnetic resonance imaging (MRI) and heterogeneous hyperintensity in T2-weighted imaging. Fat was evident within the tumor. At necropsy, the tumor was attached to the distal end of the right uterine horn. Histopathology showed mature tissue types representing all three germ layers. Conclusions Ovarian teratoma should be considered in the differential diagnosis of ovarian or abdominal masses in woodchucks. The tumor displayed mature tissue derived from all three germ layers. CT, ultrasound, and MRI findings were presented in detail and matched the typical imaging appearance of teratomas.
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Affiliation(s)
- Johnathan Zeng
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Room 3N320, MSC 1182, Bethesda, MD, 20892, USA
| | - Matthew F Starost
- Division of Veterinary Resources, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Michal Mauda-Havakuk
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Room 3N320, MSC 1182, Bethesda, MD, 20892, USA
| | - Andrew S Mikhail
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Room 3N320, MSC 1182, Bethesda, MD, 20892, USA
| | - Ari Partanen
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Room 3N320, MSC 1182, Bethesda, MD, 20892, USA
| | - Bradford J Wood
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institute of Biomedical Imaging and Bioengineering and National Cancer Institute Center for Cancer Research, National Institutes of Health, Bethesda, MD, 20892, USA
| | - John W Karanian
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Room 3N320, MSC 1182, Bethesda, MD, 20892, USA
| | - William F Pritchard
- Center for Interventional Oncology, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, 10 Center Drive, Room 3N320, MSC 1182, Bethesda, MD, 20892, USA.
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Fiddes KR, Murray J, Williams BH. Testicular Teratocarcinoma in a Ferret (Mustela putorius furo). J Comp Pathol 2020; 181:63-67. [PMID: 33288153 DOI: 10.1016/j.jcpa.2020.09.017] [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: 08/12/2020] [Revised: 09/25/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022]
Abstract
A 7-month-old male domestic ferret (Mustela putorius furo) was presented for evaluation of unilateral testicular enlargement. Microscopic examination of the left testicle revealed a neoplasm with differentiation along multiple cell lines (ectoderm, endoderm, mesoderm) including respiratory epithelium, bone and haired skin. A poorly differentiated epithelial component was dispersed throughout the neoplasm with invasion of testicular lymphatics. The animal developed progressive dysuria and was euthanized. At necropsy, metastasis of the poorly differentiated epithelial component was present in the urinary bladder, ureters, prostate gland, pelvic fat, abdominal and thoracic lymph nodes, kidney and lung. This is the first report of a malignant testicular teratoma with widespread metastasis in this species.
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Affiliation(s)
- Kelsey R Fiddes
- Veterinary Pathology Division, Joint Pathology Center, Silver Spring, Maryland, USA.
| | - Jerry Murray
- Animal Clinic of Farmers Branch, Farmers Branch, Texas, USA
| | - Bruce H Williams
- Veterinary Pathology Division, Joint Pathology Center, Silver Spring, Maryland, USA
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Abstract
Ferrets have become more popular as household pets and as animal models in biomedical research in the past 2 decades. The average life span of ferrets is about 5-11 years with onset of geriatric diseases between 3-4 years including endocrinopathies, neoplasia, gastrointestinal diseases, cardiomyopathy, splenomegaly, renal diseases, dental diseases, and cataract. Endocrinopathies are the most common noninfectious disease affecting middle-aged and older ferrets. Spontaneous neoplasms affecting the endocrine system of ferrets appear to be increasing in prevalence with a preponderance toward proliferative lesions in the adrenal cortex and pancreatic islet cells. Diet, gonadectomy, and genetics may predispose ferrets to an increased incidence of these endocrinopathies. These functional proliferative lesions cause hypersecretion of hormones that alter the physiology and metabolism of the affected ferrets resulting in a wide range of clinical manifestations. However, there is an apparent dearth of information available in the literature about the causal relationship between aging and neoplasia in ferrets. This review provides a comprehensive overview of the anatomy and physiology of endocrine organs, disease incidence, age at diagnosis, clinical signs, pathology, and molecular markers available for diagnosis of various endocrine disorders in ferrets.
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Affiliation(s)
- V Bakthavatchalu
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - S Muthupalani
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - R P Marini
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - J G Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
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Congenital Mature Intracranial Teratoma in a Pampas Deer (Ozotoceros bezoarticus) in Brazil. J Wildl Dis 2016; 52:749-52. [PMID: 27310166 DOI: 10.7589/2015-03-070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Keller DL, Schneider LK, Chamberlin T, Ellison M, Steinberg H. Intramedullary lumbosacral teratoma in a domestic ferret (Mustela putorius furo). J Vet Diagn Invest 2012; 24:621-4. [PMID: 22529139 DOI: 10.1177/1040638712442882] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
An 18-month-old, female, spayed domestic ferret (Mustela putorius furo) was presented for progressive hind limb paresis of 1 week duration. The ferret was mentally appropriate but cachexic and ataxic with neurological deficits, which localized the lesion to the lumbosacral region. A depression in the lumbosacral spine was associated with discomfort on palpation. Results of whole body radiographs were consistent with an abnormal angle between vertebrae L6 and S1, which resulted in hyperflexion of the spine. The ferret was euthanized, and histopathological examination revealed an intramedullary lumbosacral teratoma effacing much of the spine in the region of the mass.
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Affiliation(s)
- Dominique L Keller
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI 53706, USA.
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MUTINELLI F, CARMINATO A, BOZZATO E, MARCHIORO W, TREVISAN L, VASCELLARI M. Retroperitoneal Teratoma in a Domestic Rabbit (Oryctolagus cuniculus). J Vet Med Sci 2009; 71:367-70. [DOI: 10.1292/jvms.71.367] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Franco MUTINELLI
- Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
| | - Antonio CARMINATO
- Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
| | - Elisa BOZZATO
- Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
| | - Wendy MARCHIORO
- Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
| | - Laura TREVISAN
- Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
| | - Marta VASCELLARI
- Istituto Zooprofilattico Sperimentale delle Venezie, Histopathology Department, Viale dell'Universita'
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Abstract
A neonatal male sable antelope (Hippotragus niger) was found dead. A 5 by 12-cm lobulated mass was present in the oral cavity, attached to the caudal border of the soft palate; this mass contained hair, cartilage, bone, nervous tissue, muscle, and multiple gland-like structures. Histopathologic diagnosis was consistent with oropharyngeal teratoma. As a result of the lack of wear of the fetal hooves, the firm, collapsed appearance of the lungs, and the lack of other gross or histopathologic abnormalities, the oropharyngeal tumor is suspected to have caused an airway obstruction, resulting in the calf's early postnatal death. This is the first report of an oropharyngeal teratoma in the veterinary literature.
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Munday JS, Fairchild SE, Brown CA. Retroperitoneal teratoma in a skunk (Mephitis mephitis). J Zoo Wildl Med 2004; 35:406-8. [PMID: 15526901 DOI: 10.1638/03-063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A 4-yr-old striped skunk (Mephitis mephitis) developed an 11- x 7- x 7-cm retroperitoneal mass caudal to the left kidney. The mass was surgically excised and, on the basis of histology and immunohistochemistry, diagnosed as a benign teratoma. Six months later, a second histologically similar neoplasm was excised from the same location and was considered to represent local tumor recurrence. The skunk died 16 mo later without recurrence. Complete excision of the tumor appeared curative in this case and supported the benign diagnosis. An extragonadal teratoma should be considered as a differential diagnosis for an abdominal mass in a skunk.
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Affiliation(s)
- John S Munday
- Athens Diagnostic Laboratory and Department of Veterinary Pathology, College of Veterinary Medicine, University of Georgia, Georgia 30602, USA
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Lumsden JS, Marshall S. Sporadic neoplasms of farmed chinook salmon, Oncorhynchus tshawytscha (Walbaum), from New Zealand. JOURNAL OF FISH DISEASES 2003; 26:393-399. [PMID: 12946008 DOI: 10.1046/j.1365-2761.2003.00474.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Eight separate neoplasms with five distinct morphologies are described in the present report. The spontaneous neoplasms were identified in farmed chinook salmon, Oncorhynchus tshawytscha (Walbaum), during processing. The masses were examined histologically and were classified as teratoma, rhabdosarcoma, biliary and renal cystadenomas, renal carcinoma and three leiomyomas. This represents one neoplasm detected for every 125000 fish processed during the sampling period.
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Affiliation(s)
- J S Lumsden
- Institute of Animal, Veterinary, and Biomedical Sciences, Massey University, Palmerston North, New Zealand.
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Abstract
A mature cystic teratoma presented as an adrenal mass in a 57-yr-old woman. The tumor was found to be predominantly paraadrenal but focally interrupted the adrenal cortex so that an intraadrenal origin could not be ruled out. Similar lesions have been reported extremely rarely and should be considered in the differential diagnosis of hormonally silent adrenal tumors. The findings of rimlike calcification and fatty density on computed tomography may be helpful diagnostically.
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Affiliation(s)
- Shahinaz Bedri
- Department of Pathology, New England Medical Center, Coston, MA 02111, USA
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