Occurrence of different neoplasms of dogs in Mumbai region

The present study was conducted on 55 dogs presented with the history of tumorous growths to the department. Age, sex, breed and site of tumour/growth of all the animals were recorded. The biopsy samples were collected for histopathological examination. The age of affected animals varied from 1–15 years. The highest occurrence was recorded in the age group of 4–6 years (30.9%). Both male and female animals were equally affected. Skin neoplasms were found more in males (69.2%) than in females (30.8%). Three male animals (75%) were affected with oral tumours as compared to one case of female (25%). All cases of perianal adenoma/adenocarcinoma were seen in male animals only. Thirty one cases were observed in non-descript animals (50.9%) followed by Pomeranian and Labrador (n= 8, 14.5%), German Shepherd (n=5, 9.09%), Rottweiler (n=2, 3.63%) and Basset hound, Doberman, German short hair, Great Dane (n=1, 1.8%) respectively. Out of 55 suspected cases, eleven samples (20.01%) were diagnosed as inflammatory hyperplastic growths and forty four cases (80.0%) were diagnosed as neoplastic upon histopathology. Out of 44 cases, 14 cases were diagnosed as mammary tumours (benign 14.5% and malignant 10.9%),) followed by histiocytoma (8.6%), venereal granuloma (6.8%), perianal gland adenocarcinoma (3.6%), epulis (3.4%), fibroma (3.4%), leiomyosarcoma (3.4%), perianal gland adenoma (1.7%) leiomyoma (1.7%), seminoma (1.7%), sertoli cell tumour (1.7%), melanoma (1.7%), sqmaous cell carcinorma (1.7%), fibrosarcoma (1.7%), meibomian gland adenoma (1.7%), skull bone tumours (1.7%) and hemangiopericytoma (1.7%).