Bilateral Lipoadenoma of the Adrenal Glands and Humeral Brown Tumor: An Unusual Association

Table 2

Clinical manifestations of MEN1 syndrome.

Clinical manifestations	Prevalence (%)
Hyperparathyroidism	90
Neuroendocrine tumors of the duodenum and pancreas	Nonfunctioning: 55
	Gastrinoma: 40
	Insulinoma 10
	Glucagonoma <1
	VIPoma <1
Pituitary adenomas	40
Adrenocortical tumors	20–40
Pheochromocytomas	<1
Neuroendocrine thymic tumors	2
Bronchopulmonary neuroendocrine tumors	5
Angiofibromas	85
Collagenomas	70
Lipomas	30
Other tumors
Meningioma	8
Ependymoma, melanoma, thyroid	0–25