A Rare Case Of Non - functional Adrenal Pheochromocytoma Presenting As Incidentaloma

55 year old female, was evaluated for dysuria. An ultrasonogram of abdomen was taken, which showed a left intrarenal calculi and a mass over the upper pole of Right Kidney. There were no symptoms suggestive of a functional adrenal tumour. General and systemic examinations were within normal limits. Routine hematological and biochemical examinations were normal. Biochemical tests for functioning adrenal neoplasm were negative. CT scan of the abdomen showed an adrenal neoplasm measuring 6.98cm and 6.22cm, possibly pheochromocytoma or malignancy. Laparotomy and right Adrenalectomy was done. Biopsy report was consistent with Pheochromocytoma. Pheochromocytoma accounts for only for around 4, majority of it is functioning even in the absence of clinical symptoms. Nonfunctioning adrenal Pheochromocytoma is a rare cause incidentaloma.