Fig. 3
From: The value of magnetic resonance neurography in evaluation of sciatic neuropathy
A 10-year-old boy patient, with a history of leukemia, previous left gluteal injection and followed by severe pain and gradual muscle weakness at the left thigh and foot. Electrophysiological studies revealed a + ve ipsilateral straight leg raising; MRI of the pelvis showed area of subcutaneous and left gluteal muscles collections associated with a focus of bone marrow leukemic infiltration in the left iliac crest (arrows in A and B). MRN shows a perineural edema related to the left sciatic nerve with mildly reduced thickness (open arrow in C and D), compared with the normal right-sided nerve (Arrow in E and F)