Post-Mortem Diagnosis of a Rare Biphasic Benign Multicystic Peritoneal Mesothelioma in an Indian Domestic Fowl (Gallus Domesticus)

Mesotheliomas are rare neoplasms originating from coelomic cavities. Environment pollution, viral or genetic factors have been implicated in the pathogenesis of this neoplasms. Although several cases are on record in man and animals, the veterinary medical literatures on mesotheliomas in birds are scarce especially those affecting poultry. Also, the biphasic pattern of mesothelioma is rare compared to other histological structural forms. In the present case, a seven month-old male bird of Gramasree breed was diagnosed with biphasic benign multi-cystic peritoneal mesothelioma (BMPM) during necropsy. This was a rare case of biphasic BMPM in an Indian Domestic fowl and hence required documentation.