医
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动静脉短路现象、丘疹、栗东、血管壁及周围有...、闫鹏辉
Arteriovenous malformation (AVM) is a high-flow vascular malformation from abnormal embryonic vascular development causing direct artery-vein anastomosis without capillaries. ~1.5% of vascular anomalies; head/neck 50%, then extremities/trunk. ~60% present at birth, rest in adolescence/adulthood. Schobinger staging: I quiescent, II expansion, III destruction, IV decompensation (high-output heart failure).
Arteriovenous shunt; papule; perivascular infiltration
Upper/mid dermis, unencapsulated, thick/thin walled vessels lined by endothelium; thick walls fibrous/smooth muscle; RBCs/thrombi; true arterial component; inflammatory infiltrate.
Ablative ethanol embolization; surgery
No effective prevention; early detection/treatment.
It is recommended to visit the general surgery department; before the visit you may first book an appointment and connect with experts through this platform.
Warm reminder: The above information is provided for health education reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek care at a regular hospital in time.
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