Reason: any change in the plexiform neurofibroma? History: girl with NF1 and plexiform neurofibroma which is getting larger and is associated with pain now. Left arm pain. There is no discrete mass evident involving the visualized left-sided cervical nerve roots or proximal left brachial plexus. Plexiform neurofibroma involving the posterior aspect of the left arm is better assessed on separate MRI humerus study. There is however extension medially to involve the distal brachial plexus/ branches at the level of the axilla which is similar to prior.Small neurofibromas along the upper bilateral intercostal nerves are present similar to prior. There also few scattered T2 hyperintense lesions involving the visualized subcutaneous soft tissues compatible with small neurofibromas.
The large left arm neurofibroma is better imaged on the separate MRI humerus study, although there is medial extension into the brachial plexus branches at the level of the axilla as before. No discrete mass involving the visualized cervical nerve roots or proximal brachial plexus.