Review and present the characteristic MR features of head and neck vascular lesions that may allow specific diagnosis.

Retrospective study on 102 patients (59 M, 43 F aged 3ms-71 ys) with head & neck vascular lesions. They underwent MRI (n=102), CT (n=66)& DSA (n=47). Proliferating (n=11) or involuated (n=7) hemangiomas & Kapisoid hemangioendothelioma (n=2) showed different signal intensity. Low flow venous (n=8) & capillary (n=5) malformations can be differentiated from lymphatic (n=9) & high flow arterial (n=4) malformation. Angiofibroma (n=18) and paraganglioma either jugular (n=13), vagale (n=6) & tympanicum (n=3) were highly vascular benign tumor with signal void regions. Hemangiopericytoma (n=3), angiosarcoma (n=2), Kaposi sarcoma (n=1) were aggressive destructive malignant vascular tumors. Other lesions were: venous thrombosis(n=5), aneurysm (n=3)& AV fistula (n=2). We concluded that MR imaging can discriminate and characterize head and neck vascular lesions that enable treatment target to the lesion.