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Telangiectasia, hereditary hemorrhagic, type 1
Hereditary hemorrhagic telangiectasia (HHT) is characterized by the presence of multiple arteriovenous malformations (AVMs) that lack intervening capillaries and result in direct connections between arteries and veins. The most common clinical manifestation is spontaneous and recurrent nosebleeds (epistaxis) beginning on average at age 12 years. Telangiectases (small AVMs) are characteristically found on the lips, tongue, buccal and gastrointestinal (GI) mucosa, face, and fingers. The appearance of telangiectases is generally later than epistaxis but may be during childhood. Large AVMs occur most often in the lungs, liver, or brain; complications from bleeding or shunting may be sudden and catastrophic. A minority of individuals with HHT have GI bleeding, which is rarely seen before age 50 years. [from GeneReviews]
Fibromuscular dysplasia, multifocal
Multifocal fibromuscular dysplasia (FMDMF) is characterized histologically by medial fibroplasia and angiographically by multiple arterial stenoses with intervening mural dilations. Arterial tortuosity, macroaneurysms, dissections, and rupture may occur (summary by Richer et al., 2020). [from OMIM]
Dilatation of celiac artery
Abnormal outpouching or sac-like dilatation in the wall of the celiac artery. [from HPO]
Hereditary hemorrhagic telangiectasia type 4
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