39-year-old male. Low-grade MPNST of the right thigh s/p resection and adjuvant RT. Markers are placed along the medial aspect of the upper thigh, presumably denoting the site of the surgical scar. Bandlike signal abnormality traversing the subcutaneous fat between the two markers is consistent with a scar. There are foci of metallic susceptibility artifact along the peripheral deep fascia of the adductor musculature, reflecting prior surgery. A tiny focus of abnormal signal intensity and enhancement with the posterior aspect of the proximal muscle belly of the gracilis is less distinct than that seen on prior study and may reflect post-treatment change. We see no discrete mass to indicate tumor recurrence. The remaining musculature of the thigh is normal. The bone marrow signal intensity is normal.
Post-operative changes, as described above, without evidence of tumor recurrence.