Silent Adrenal Pheochromocytoma Coexistent with Corticomedullary Hyperplasia: A Case Incidentally Discovered.
ABSTRACT
Introduction: Pheochromocytoma (PHEO) is a rare catecholamine-producing tumour arising from chromaffin cells in the sympatho-adrenal
system, and can present as asymptomatic adrenal incidentaloma (AI).
Patient: We describe the case of a 61-year-old woman with a right adrenal mass incidentally discovered, who was biochemically characterized
with subclinical hypercortisolism (SH). The patient was scheduled for adrenalectomy because of increasing seizure of the right adrenal
gland with a haemorrhagic and focal pseudocystic appearance macroscopically, incidental histological and immunohistochemical PHEO, and
micronodular cortico-adrenal hyperplasia.
Discussion: This report describes a rare case of incidental non-functioning PHEO coexisting with corticomedullary hyperplasia and SH.