Shedd, Amanda2019-06-182019-06-182019-05-08https://hdl.handle.net/1813/66541A 6-year-old male neutered Staffordshire Terrier presented to Cornell's Emergency Service on March 25th for a history of vomiting and hyporexia after ingestion of woodchips. His initial physical examination and diagnostics (bloodwork and radiographs) were unremarkable. However, the abdominal ultrasound revealed an incidental 3.7cm right adrenal mass, and mild enlargement of the left adrenal gland. Given the size of the adrenal mass and the irregular shape noted on ultrasound, a malignant neoplasm was suspected. Following transfer to the Internal Medicine service, serial blood pressure measurements, an adrenocorticotropic (ACTH) stimulation test and a urine metanephrine/normetanephrine test were performed with a presumptive diagnosis of a pheochromocytoma. In preparation for an adrenalectomy, phenoxybenzamine ( a-1 antagonist) was prescribed and computed tomography and angiography (CTA) was performed for surgical planning. No vascular invasion was noted on the CTA. A right adrenalectomy was performed on April 10th without complication. The mass was sent for histopathology and was diagnosed as a ruptured pheochromocytoma.en-USpheochromocytoma, canine, adrenal tumor, adrenalectomycase study