MEN Syndromes Flashcards
MEN syndromes
group of inherited disorders
proliferative lesions
-hyperplasia, adenomas, carcinomas
of multiple endocrine organs
MEN1
pituitary
parathyroid
pancreatic
3 Ps
MEN2A
parathyroid
medullary thyroid carcinoma
pheochromocytoma
2Ps
MEN2B
mucosal neuromas
mafranoid body habitus
medullary thyroid carcinoma
pheochromocytoma
1P
think MEN if
young age
multiple endocrine organ tumors
asymptomatic hyperplasia precedes tumor
more aggressive and recur**
wermer syndrome
MEN1
pituitary, parathyroid, and pancreas glands
MEN1 parathyroid
primary hyperparathyroidism
MEN1 pancreas
endocrine tumor of pancreas
aggressive with mets
multiple microadenomas throughout pancreas
often functional tumors - PP most common
MEN1 pituitary
most frequently - prolactinoma
gastrinomas in MEN1
commonly in duodenum
MEN1 mutation
menin
tumor suppressor gene
MEN2 mutation
RET protooncogene
GOF mutation on chromosome 10q11.2
sipple syndrome
MEN2a
pheochromocytoma, medullary carcinoma of thyroid, parathyroid hyperplasia
MEN2b
more aggressive and multifocal medullary thyroid cancers
and pheochromocytomas
no hyperPTH**
also - neuromas or ganglioneuromas (bumps on skin, oral mucosa, eyes, resp tract, GI tract
also - marfanoid habitus
RET on genetic testing
prophylactic thyroidectomy
almost all develop medullary carcinoma of thyroid