Adrenal Gland Pheochromocytoma

**Semantic type:** Neoplastic Process

**Definition:** A neuroendocrine neoplasm of the sympathetic nervous system that arises from the chromaffin cells of the adrenal medulla and secretes catecholamines. Clinical presentation includes headaches, palpitations, chest and abdominal pain, hypertension, fever, and tremor. Microscopically, a characteristic nesting (zellballen) growth pattern is usually seen. Other growth patterns including trabecular pattern may also be present.

**Synonyms:** - Adrenal Gland Chromaffin Paraganglioma - Adrenal Gland Chromaffinoma - Adrenal Gland Paraganglioma - Adrenal Medullary Paraganglioma - Adrenal Medullary Pheochromocytoma - Adrenal Pheochromocytoma - Adrenal medullary paraganglioma - Chromaffin Paraganglioma of the Adrenal Gland - Intraadrenal Paraganglioma - PCC - Pheochromocytoma - Pheochromocytoma - Pheochromocytoma (adrenal) - pheochromocytoma