Ectopic Cushing's syndrome associated with a pheochromocytoma in a dog: a case report.

Background: Ectopic Cushing's syndrome (ECS) associated with malignant tumors, such as small cell lung carcinoma, bronchial carcinoids, and pheochromocytoma, has been reported in human medicine. However, ECS related to pheochromocytoma has not been reported in dogs.

Case Presentation: An 11-year-old castrated, male Scottish terrier was diagnosed with a left adrenal mass.