Neurofibromatosis, elbow mass Note that this exam was not tailored for evaluation of the internal structures of the elbow.Within the volar and radial soft tissues of the elbow anterior to the brachioradialis and brachialis muscles and along the expected course of the medial nerve is a well-circumscribed mass measuring 2.5 x 2.4 x 3.8 cm in the greatest transverse, AP, and craniocaudal dimensions. The mass is predominantly hyperintense to skeletal muscle on T2-weighted sequences (although contains some internal low signal intensity) and isointense to skeletal muscle on T1 sequences. The mass does not appear to invade the surrounding fat planes and is and otherwise does not demonstrate aggressive features. Following contrast administration, there is central, heterogeneous enhancement. This mass was evident on the comparison examination from 2014 and has increased from that exam when it measured approximately 1.9 x 1.8 x 2.9 cm.The underlying marrow signal of the distal humerus and proximal forearm are normal. Within the limits of this exam, the ligaments and tendons of the elbow appear normal. There is no joint effusion.
Single soft tissue mass consistent with peripheral nerve sheath tumor. This has increased in size on the comparison examination dated 8/15/2014.