Adrenal pheochromocytoma-ganglioneuroma producing catecholamines and various neuropeptides.

A 65-year-old woman presenting with back pain, difficulties in walking and watery diarrhea. A right adrenal tumor and high excretion of catecholamines were found. Laboratory examinations showed raised levels of vasoactive intestinal polypeptide, pancreatic polypeptide, gastrin and calcitonin. Histology showed a combined pheochromocytoma-ganglioneuroma. The neoplastic cell population was immunohistochemically shown to contain tyrosine hydroxylase, neuropeptide Y, met-enkephalin, substance P, vasoactive intestinal polypeptide, calcitonin and calcitonin gene-related peptide. Postoperatively, the patient recovered fully and the hormone levels returned to normal.

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