Mastocitoma in dog

Abstract

The authors describe the anatomic-pathological and haematological features of a multiple mastocitoma in a dog. They draw the attention of pathologists to this type of blastoma which has not yet been reported in Brazil, although being very frequent in others countries. They try experimental reproduction, but without success. After discussing the fixation as well as the histamine and heparin contents of the neoplastic cells, the authors coment on the local and haematic eosinophilie suggesting an explanation for this fact.