Functionally Silent, Giant Pheochromocytoma Presenting With Varicocele

Abstract

Adrenal incidentalomas are a known entity that have been increasing in commonality with the advent of improved diagnostic and imaging techniques. There are a vast variety of causative pathologies to which this diagnosis can be attributed. Some of these pathologies are more common than others, while many remain extremely rare. One of the distinct entities that is a unique cause of incidentalomas is the diagnosis presented herein: pheochromocytoma. Pheochromocytomas are often an exceptional subset of incidentalomas that can certainly play a major role in treatment and management plans. However, the exclusivity of a pheochromocytoma diagnosis alone is not where the uniqueness of this case rests. The uniqueness in this patient is paramount to report due to 2 additional significant factors. The first was that the patient was entirely asymptomatic aside from complaints related to scrotal swelling due to a varicocele, for which this presentation of pheochromocytoma has been scarcely reported in the literature. Second, the patient had a pathology proven diagnosis of pheochromocytoma, while lacking both symptoms and biochemical findings to support the diagnosis, making it truly a silent pheochromocytoma.