Abstract

An eight year old male Pomeranian dog was brought to District Veterinary Centre, Kannur, Kerala with complaints of multiple cutaneous masses with ulcerations, erythema and pruritis in the lower abdomen. Haematological examination revealed mild anaemia, leucocytosis, neutrophilia, monocytosis and eosinophilia. Wet film examination and blood smear examination revealed presence of numerous microfilarial organisms. Fine needle aspiration cytology of the cutaneous masses revealed discrete round cells displaying variable degrees of granulation, moderate anisokaryosis and anisocytosis. Based on the cytological findings, a straight forward diagnosis of high grade mastocytoma was made by the presence of metachromatic granules in the cytoplasm of cells and in the background.

Keywords : Mastocytoma, Canine, Cytology, Giemsa stain, Microfilariae