Chondro‐Osteoblastic lipoma in a dog

Abstract This case report describes a rare chondro‐osteoblastic lipoma identified in a 10‐year‐old, mixed‐breed, female dog that presented with a progressively enlarging mass on the left thoracic wall. Histopathological examination revealed a poorly circumscribed proliferation of mature adipocytes interspersed with areas of cartilaginous and osseous metaplasia. The lesion was completely excised, and no recurrence was observed during follow‐up. This case highlights the importance of considering this rare variant in the differential diagnosis of lipomatous tumours in dogs.