Adrenal cortical carcinoma masquerading as pheochromocytoma: a case report

What is it about?

There are reported cases of concurrence of pheochromocytoma and ACC [1]. However, it is rare for ACC to present clinically as pheochromocytoma. In this case, we report a case of ACC mimicking pheochromocytoma clinically and biochemically.

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Why is it important?

It is extremely uncommon for ACC to present as pheochromocytoma. The initial presentation combined with excessive urinary VMA level lead to preoperative diagnosis of pheochromocytoma in our case. It was not the concurrence of both tumours but the functioning carcinoma of the adrenal cortex presenting with clinical features of pheochromocytoma which is unique and rare. To the best of our knowledge, this is the first reported case of ACC presenting with pheochromocytoma features from Myanmar.