CYTOLOGICAL AND PATHOLOGICAL DIAGNOSIS OF ACANTHOMATOUS AMELOBLASTOMA IN LABRADOR DOG

A three year female Labrador dog was presented to the Teaching Veterinary Clinical Complex, Akola, with history of hyporexia and rostral mandibular swelling.Oral examination revealed a pale mass at rostral mandible pressing against lower incisors.Fine needle aspiration cytology indicated a neoplasm of epithelial origin.The mass was surgically excised and histopathologically diagnosed as canine acanthomatous ameloblastoma (CAA) with atypical features.Histological examination showed multifocal ameloblastic islands within a dense proliferating epithelial layer, with irregular epithelial stratification at the basal layer.Intercellular bridging and nuclear polymorphism were also noted, confirming the diagnosis of CAA with atypical histomorphology.