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Ovários policisticos epidermóides e hipoplasia uterina em uma vaca bovina / Epidermoid polycystic ovaries and uterine hypoplasia in a cow

Souza, Natália Freitas de; Pereira, Washington Luiz Assunção; Andrade, Sara Letícia dos Santos; Moura, Márcio Alan Oliveira; Mileo, Victor da Costa; Lima, Moises Moreira; Rolim Filho, Sebastião Tavares; Jaques, Adriana Maciel de Castro Cardoso.
Acta Sci. vet.; 48(suppl.1): Pub. 488, Mar. 2, 2020. ilus
Artigo em Português | VETINDEX | ID: vti-24559

Resumo

Background: Ovarian cysts originate from mature follicles that do not ovulate within the predicted time according to the oestrous cycle. Dermoid cysts are structures lined by keratinized stratified squamous epithelium, without adjacent epidermal structures, filled by keratinic debris and amorphous proteinaceus material. They are small, located below the cortex, near the hilus. There is controversy regarding the teratogenicity of the dermoid cyst. Some authors use the nomenclature of benign cystic ovarian teratoma, others, reports that although the fibrous wall and histological features are similar to teratomas, it is not associated with this germ cell-derived neoplasia. Case: Ovaries and uterus were received from a female, adult bovine, Nelore, from a slaughterhouse. The left ovary measured 6.5x5.0x3.9 cm and weighed 80 g; the right ovary measured 5.7x3.7x3.0 cm and weighed 60 g. Grossly, the ovaries were similar, presenting floating consistency, multilobulated and pointed aspect, and at the cut surface, there was extravasation of mucopurulent content of whitish colour. Regarding to the uterus, macroscopically, the uterine horns were infantile and decrease in the diameter. Fragments of the tissues were collected and fixed in 10% buffered formalin for histopathological examination and the staining of the slides was done with hematoxylin and eosin. Microscopically, in the ovaries, it was observed rare vestigial elements of ovary identifying an atresic follicle. Polycystic formation with cysts exhibiting partial or total coating of a keratinized squamous epithelium was also observed. In the lumen abundant keratinous material was present. The uterine microscopy revealed compact endometrium with areas variably infiltrated by lymphocytes, plasmocytes and occasional neutrophils. Areas devoid of endometrial glands were observed…(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1