1Vector Control Laboratory, Hosur, Tamil Nadu
2Department of Veterinary Pathology, Madras Veterinary College, Chennai, 600 007
*Forms part of the M.V.Sc. thesis of the first author approved by the Tamil Nadu Veterinary and Animal Sciences University, Chennai 600 051;
Out of 65 cases of cutaneous tumours studied in canines, 14 were round cell tumours. The transmissible venereal tumour (TVT) constituted seven, mast cell tumours four, histiocytomas two and histiocytic sarcoma one. Cytologically, the tumours yielded high cellularity. The TVT had punctate vacuoles in the cytoplasm. Mast cell tumours showed cytoplasmic granules. Histiocytoma revealed multinucleated cells. The histopathological study confirmed the cytological diagnosis. Thus, cytology can be used as a rapid and inexpensive technique for diagnosis of neoplasms. An algorithm was developed for cytological diagnosis of different round cell tumours in canines.
Canine, Cytology, Round cell tumours
