title: A case of bovine sex cord tumour with annular tubules.
abstract: A case of sex cord tumour with annular tubules was found in the right ovary of a 17-month-old Holstein cow. The tumour was characterized by tubules encircling hyaline bodies, which were composed of concentric lamellae of basal lamina. Several irregular tubular structures and a small component of granulosa cell differentiation were seen. Immunohistochemically, the neoplastic cells stained positively for oestradiol or testosterone.
authors.affiliation: Chuo Livestock Hygiene Service Centre, Yamagata, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Niizeki
authors.forename: N
authors.initials: N
authors.lastname: Hashimoto
authors.forename: S
authors.initials: S
authors.lastname: Ishino
authors.forename: K
authors.initials: K
authors.lastname: Kadota
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000473:pathology*; D005260:Female; D006106:Granulosa Cell Tumor / Q000473:pathology / Q000662:veterinary*; D008854:Microscopy, Electron; D010051:Ovarian Neoplasms / Q000473:pathology / Q000662:veterinary*