A Leydig Cell Tumour in a Cat: Histological and Immunohistochemical Findings

A 13-year-old intact male cat was submitted to castration after the finding of the enlargement of the right testis during the clinical visit. Macroscopically, a nodule of 2 cm of diameter was observed on the cut surface of the enlarged testis. Histologically, the nodule was composed by polyhedral to...

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Main Authors: Pietro Asproni, Francesca Millanta, Davide Lorenzi, Alessandro Poli
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Case Reports in Veterinary Medicine
Online Access:http://dx.doi.org/10.1155/2013/670398
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author Pietro Asproni
Francesca Millanta
Davide Lorenzi
Alessandro Poli
author_facet Pietro Asproni
Francesca Millanta
Davide Lorenzi
Alessandro Poli
author_sort Pietro Asproni
collection DOAJ
description A 13-year-old intact male cat was submitted to castration after the finding of the enlargement of the right testis during the clinical visit. Macroscopically, a nodule of 2 cm of diameter was observed on the cut surface of the enlarged testis. Histologically, the nodule was composed by polyhedral to elongated cells with a large, eosinophilic, and vacuolated cytoplasm and small, round, and dark nuclei. These cells were arranged in acinar structures and solid sheets. The tumour was diagnosed as a Leydig cell tumour. Immunohistochemical analysis revealed that neoplastic cells were vimentin, calretinin, and melan-A positive, whereas a lack of immunoreactivity to cytokeratins confirmed the diagnosis. To our knowledge, this is the first description of a feline Leydig cells tumour without any concurrent testicular neoplasm or in a nonretained testis.
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institution Kabale University
issn 2090-7001
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publishDate 2013-01-01
publisher Wiley
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series Case Reports in Veterinary Medicine
spelling doaj-art-2f17c567e2a742e3a578464251c030182025-02-03T06:06:03ZengWileyCase Reports in Veterinary Medicine2090-70012090-701X2013-01-01201310.1155/2013/670398670398A Leydig Cell Tumour in a Cat: Histological and Immunohistochemical FindingsPietro Asproni0Francesca Millanta1Davide Lorenzi2Alessandro Poli3Department of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2, 56124 Pisa, ItalyDepartment of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2, 56124 Pisa, ItalyDepartment of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2, 56124 Pisa, ItalyDepartment of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2, 56124 Pisa, ItalyA 13-year-old intact male cat was submitted to castration after the finding of the enlargement of the right testis during the clinical visit. Macroscopically, a nodule of 2 cm of diameter was observed on the cut surface of the enlarged testis. Histologically, the nodule was composed by polyhedral to elongated cells with a large, eosinophilic, and vacuolated cytoplasm and small, round, and dark nuclei. These cells were arranged in acinar structures and solid sheets. The tumour was diagnosed as a Leydig cell tumour. Immunohistochemical analysis revealed that neoplastic cells were vimentin, calretinin, and melan-A positive, whereas a lack of immunoreactivity to cytokeratins confirmed the diagnosis. To our knowledge, this is the first description of a feline Leydig cells tumour without any concurrent testicular neoplasm or in a nonretained testis.http://dx.doi.org/10.1155/2013/670398
spellingShingle Pietro Asproni
Francesca Millanta
Davide Lorenzi
Alessandro Poli
A Leydig Cell Tumour in a Cat: Histological and Immunohistochemical Findings
Case Reports in Veterinary Medicine
title A Leydig Cell Tumour in a Cat: Histological and Immunohistochemical Findings
title_full A Leydig Cell Tumour in a Cat: Histological and Immunohistochemical Findings
title_fullStr A Leydig Cell Tumour in a Cat: Histological and Immunohistochemical Findings
title_full_unstemmed A Leydig Cell Tumour in a Cat: Histological and Immunohistochemical Findings
title_short A Leydig Cell Tumour in a Cat: Histological and Immunohistochemical Findings
title_sort leydig cell tumour in a cat histological and immunohistochemical findings
url http://dx.doi.org/10.1155/2013/670398
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