Surgical removal of a localised vascular hamartoma in a dog

A two year old male Labrador Retriever was presented for sudden abdominal 10 distension. Abdominal ultrasonography revealed abundant abdominal fluid and an hepatic mass, which was removed by total lobectomy. Histologic evaluation of the mass supported a vascular hepatic hamartoma. Vascular hamartomas are rare malformations in animals. Only two cases of vascular hepatic hamartomas have been reported in the dog. This is the first recorded case of canine vascular hepatic 15 hamartoma treated surgically with a successful long term outcome.