Adenoma of the hepatoid glands is a benign epithelial tumor that can develop around the anus, tail region and foreskin of dogs. A consultation in a private clinic presented a canine, male, whole, of mixed race, of 5 years that had a perianal mass on the right side, without report of other clinical signs by the owner. Surgical resection of the mass and orchiectomy of the patient was performed due to the relationship with testicular hormones that have an important role in its development; The diagnosis was made by biopsy.
