Malignant melanoma of the horn base in a Pygora goat.
J Vet Diagn Invest
; 20(1): 104-7, 2008 Jan.
Article
em En
| MEDLINE
| ID: mdl-18182522
ABSTRACT
A case of malignant melanoma, originating at the base of the left horn, was diagnosed in a white 11-year-old Pygora doe. At necropsy, the goat had an ulcerated, black-pigmented, 2.5-cm mass at the base of the left horn. Firm masses diffusely black on the cut surface were present at the left horn base, subcutaneously over the frontal bones, and infiltrating into the frontal sinuses, the submandibular lymph node, and left parotid salivary gland. The left maxillary premolars and molars were loosened from the periodontia. Multiple black foci of metastasis were observed in the liver. Histologically, the masses consisted predominantly of moderately pleomorphic, polyhedral to spindle cells that contained variable amounts of dark brown intracytoplasmic pigment granules. The tumor cells were positive for Melan A by immunohistochemical staining.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças das Cabras
/
Cornos
/
Melanoma
/
Neoplasias
Limite:
Animals
/
Pregnancy
Idioma:
En
Revista:
J Vet Diagn Invest
Assunto da revista:
MEDICINA VETERINARIA
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Estados Unidos