Syndromes Flashcards
MEN1
Gene: MEN1
Features: 3Ps - pit adenoma, parathyroid hyperplasia, pancreatic/duodenal NETs
MEN2A
Gene: RET
Features: 1M 2Ps - Medullary thyroid CA, Parathyroid hyperplasia, pheo
MEN2B
Gene: RET
Features: 2M 1P - Medullary thyroid CA, Marfanoid habitus, pheo, diffuse ganglioneuromatosis of GI tract
MEN4
Gene: CDKN1B
Features: same as MEN1
NF1
Gene: NF1 (neurofibromin)
Features: Multiple neurofibromas, optic nerve pilocytic astro, GIST, cafe-au-lait spots, lisch nodules
NF2
Gene: NF2 (merlin)
Features: Bilateral acoustic schwannomas, meningiomas, ependymomas, cafe-au-lait spots but NO lisch nodules
Tuberous Sclerosis
Gene: TSC1 (hamartin), TSC2 (tuberin)
Features: PEComas (renal angiomyolipoma, pulmonary lymphangiomeiomyomatosis, clear cell sugar tumor of lung etc), cardiac rhabdomyoma, cortical tubers, supependymal giant cell astrocytoma, cutaneous angiofibromas, eosinophilic solid and cystic RCC
Sturge-Weber
Gene: GNAQ
Features: Port-wine stain in trigeminal nerve distribution, Angiomatosis of leptomeninges, pheo, choroidal hemangioma
VHL
Gene: VHL (pVHL)
Features: CCRCC, cysts (kidney, pancreas, liver), hemangioblastomas, pheo, papillary cystadenoma of epididymis/broad ligament, endolymphatic sac tumor of ear
Birt-Hogg-Dube
Gene: BHD (folliculin)
Features: RCC, oncocytoma, hybrid oncocytic tumor (highly specific), facial fibrofolliculomas, pulmonary cysts with spontaneous pneumothorax
Beckwith-Wiedeman
Gene: Duplication of paternal allele 11p15
Features: Overgrowth of organs, tongue, childhood neoplasia (nephroblastoma, pancreatoblastoma, hepatoblastoma, neuroblastoma)
WAGR
Gene: Deletion of WT1
Features: Wilms tumor, aniridia, GU abnormalities, mental retardation
Denys-Drash
Gene: WT1 point mutation
Features: Wilms tumor, gonadoblastoma, diffuse mesangial sclerosis
Hereditary papillary renal cell cancer
Gene: MET
Features: Multiple bilateral papillary RCC
Hereditary leiomyomatosis and renal cell carcinoma
Gene: FH/fumarate hydratase
Features: RCCs and leiomyomas (cutaneous and uterine) with notable nuclear abnormalities
Succinate dehydrogenase-deficient RCC
Gene: SDHB»_space; SDHC» SDHD > SDHA
Features: RCCs with notable features, pheo/paraganglioma, GIST
McCune-Albright
Gene: Mosaicism in GNAS1
Features: Fibrous dysplasia (polyostatic), cafe-au-lait spots, endocrine abnormalities
Mazabrand syndrome
Gene: Activating GNAS1
Features: Fibrous dysplasia, soft tissue myxoma
Ollier disease
Gene: IDH1/2
Features: Enchondromatosis, increased risk of chondrosarc