Fig. 2

T2 weighted images (T2WI) of the patient’s lesion before surgery. a .Superior side of the lumbar area of the lesion. b. Buttocks and sacral area of the lesion. c. Upper thigh area of the lesion. d. Lower thigh area of the lesion. The plexiform neurofibroma shows relatively high intensity in T2WI of MRI. There are many high intensity signal lesions in the images (green arrow head). These are considered to be dilated veins or arteries