Female 14 years old History: young woman with NF1 and plexiform tumor of left arm including a very superficial componentEXAMINATION: MRI of the left humerus and forearm without IV contrast. 3/20/2016 at 1607 There is a large STIR hyperintense nodular mass in the supraclavicular region which is not significantly changed compared to the prior exam, however is better evaluated on recent brachioplexus MRI. Multiple lobulated and rounded STIR hyperintense lesions are again seen throughout the left arm along the neurovascular bundles compatible with plexiform neurofibromas. These neurofibromas follow the neurovascular bundles of the axillary, radial, median, and ulnar nerves. Along the mid to proximal humerus these plexiform neurofibromas are not significantly changed compared to the prior exam. Previously measured conglomerate of neurofibromas anterolateral to the biceps at the level of the distal humerus measures 2.9 x 0.9 cm (series 1101, image 71), previously measuring 3.0 x 1.2 cm. Neurofibromas in the forearm along the radial and median nerves are unchanged compared to the prior exam.
No significant change in innumerable plexiform neurofibromas in the left arm as detailed above.