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Peer-reviewed veterinary case report

Leiomyoma of the tunica albuginea in a horse.

Journal:
Journal of comparative pathology
Year:
1989
Authors:
Johnson, R C & Steinberg, H
Affiliation:
Department of Veterinary Pathology · United States
Species:
horse

Plain-English summary

During a routine castration of a 7-year-old Arabian stallion, a growth called a leiomyoma (a type of tumor made up of smooth muscle cells) was discovered on the left testicle. This tumor was made up of tangled groups of muscle cells that were not arranged in a typical pattern and were attached to the outer covering of the testicle. The findings suggest that the tumor was benign, meaning it was not cancerous.

Abstract

A leiomyoma of the left testicle was found in a 7-year-old Arabian stallion at routine castration. The neoplasm consisted of interlacing bundles of well-differentiated, haphazardly arranged, smooth muscle cells attached superficially to the tunica albuginea.

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Original publication: https://pubmed.ncbi.nlm.nih.gov/2760279/