[Musculoskeletal manifestations of neurofibromatosis type 1 (von Recklinghausen's disease) and tuberous sclerosis (Bourneville's disease)].

Clinical Problem: Neurofibromatosis type 1 (NF1) and tuberous sclerosis (TS) are among the most common genetic diseases. Bone and soft tissue manifestations are common disease manifestations.
Standard Radiological Procedure and Evaluation: The standard radiological procedure is magnetic resonance imaging (MRI). All macroscopic disease manifestations can be diagnosed radiologically and observed during the course. Specific complications such as plexiform neurofibromas and malignant peripheral nerve sheath tumors (MPNST) in NF1 are readily visible on MRI. Differentiation of plexiform neurofibromas and MPNST is uncertain and requires follow-up.
Recommendation for Practice: MRI is the most important procedure for the investigation of soft tissue and bone manifestations of NF1 and TS.
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