1. Facial Vascular Anomalies: Clarity With Magnetic Resonance Imaging and Biologic Classification 
Fredric A. Hoffer, M.D. 
Mayo Clinic Proceedings 
Volume 67, Issue 8, Pages (August 1992)
DOI: /S (12)60809-X
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Fig. 1
Magnetic resonance images of 25-year-old man with venous malformation of left side of face. Patient had complained of pain in left cheek during mastication. A, Coronal T1-weighted spin-echo sequence (repetition time = 600 ms; echo time = 20 ms) with presaturation, showing intermediate-intensity lesion (white arrows) that contained a single black phlebolith (curved black arrow). B, Axial fast-scan gradient-recalled echo sequence (repetition time = 33 ms; echo time = 13 ms; angle = 30°) with gradient moment nulling, again showing the black phlebolith (curved arrow) and high signal intensity (straight arrows) representative of blood flow in normal vessels outside the malformation. C, Axial T2-weighted spin-echo sequence (repetition time = 2,000 ms; echo time = 80 ms) with presaturation, showing high-intensity lesion (straight arrows) that contained a single black phlebolith (curved arrow). D, Coronal T1-weighted spin-echo sequence (repetition time = 600 ms; echo time = 20 ms) with presaturation (corresponding to A) after injection of gadolinium and diethylenetriamine pentaacetic acid, showing enhancement of lesion (arrows).
Mayo Clinic Proceedings  , DOI: ( /S (12)60809-X)
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions