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Spontaneously occurring multicentric basal cell carcinoma and keratoacanthomas in a multimammate mouse (Mastomys spp.)

 
: Eydner, M.; Jacobsen, B.; Thomann, M.; Rittinghausen, S.; Fehr, M.; Baumgärtner, W.

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Journal of veterinary diagnostic investigation 24 (2012), Nr.4, S.696-701
ISSN: 1040-6387
ISSN: 1943-4936
Englisch
Zeitschriftenaufsatz
Fraunhofer ITEM ()

Abstract
A multicentric basal cell carcinoma was diagnosed in a male multimammate mouse (Mastomys spp.) with widespread cutaneous alterations. Macroscopically, the skin was thickened and extremely wrinkled. Histopathological examination showed multicentric expanding cell-rich tumors composed of basaloid cells interpreted as basal cell carcinoma. Immunohistochemistry detected strong cytokeratin 14 positivity in the epidermal basal layer and in loosely arranged areas of these tumors but only a minimal positive reaction in densely packed areas of tumor cells. Furthermore, samples from the abdomen showed 3 nodular proliferations diagnosed as keratoacanthomas.

: http://publica.fraunhofer.de/dokumente/N-206277.html