๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Introduction
Eulalia Baselga Vascular Malformations 104
Synonyms:๏ก Vascular birthmarks; mature angiomas [misnomer]; angiodysplasias ๏ก Capillary malformation (CM): port-wine birthmark [preferred], port-wine stain, nevus flammeus ๏ก Venous malformation (VM): cavernous angioma [misnomer], cavernous hemangioma [misnomer], phlebectasia ๏ก Lymphatic malformation (LM): lymphangioma, lymphangioma circumscriptum, lymphangioma simplex, cystic hygroma, cavernous lymphangioma [historical terms/misnomers] ๏ก Arteriovenous malformation (AVM): cirsoid aneurysm, cirsoid hemangioma [misnomer]
Key features
ยAlthough both were once called โangiomasโ, vascular malforma- tions differ from the vascular tumors seen in infants and children
ยIn slow-flow malformations, capillaries, veins, and/or lymphatic channels are anomalous; most lesions are either apparent at birth or become evident within the first few months or years of life
ยIn fast-flow malformations, there is arteriovenous shunting; some lesions are apparent at birth, but the majority become evident later in childhood or adulthood
ยVascular malformations are lifelong and may worsen over time, creating cosmetic consequences and functional impairment
ยVascular malformations are occasionally found together with other abnormalities as a part of a complex syndrome