Hemangioma of the ileum in a dog

An 11-year-old, castrated male beagle dog was presented with a sudden onset of clinical signs of depression, abdominal discomfort, anorexia and melena. Radiography and ultrasonography revealed a well-circumscribed mass lesion with a size of 5 cm in diameter at the hypogastrium. A complete blood count and blood chemistry revealed severe anemia, hypoproteinemia and hypoalbuminemia. Through celiotomy, a large tumor mass involving the ileum was resected. The inside of the mass was irregular and sponge-like structure with multiple cavitated structures. On histology, the lesion was diagnosed to be hemangioma of the ileal wall. To the best of our knowledge, this unusual case is the first clinical report on the ileal hemangioma in non-human animal species.