A RARE CASE OF MEDIAN NERVE NEUROFIBROMA IN THE RIGHT ARM: ANATOMICAL CONFIRMATION FOLLOWING CADAVERIC DISSECTION.

Abstract

Background: Peripheral nerves heath tumors (PNSTs) are uncommon lesions, among which Neurofibromas predominantly occur in association with Neurofibromatosis type 1. Solitary Neurofibromas involving major peripheral nerves are rare, and their occurrence in the arm is exceptionally uncommon. Mediannerves Neurofibroma are more frequently reported in the wrist or forearm; involvement of the arm is sparsely documented.
Case Description: During routine cadaveric dissectionofan adult upper limb, a fusiform swelling was identified along the course of the median nerve in therightarm. Detailed anatomical dissection revealed that the lesion was centrally located within the nerve, lacked a true capsule, and was inseparable from the nerve fascicles, while maintaining proximal and distal continuity of the median nerve. These features were consistent with aNeurofibroma.
Conclusion: This rare cadaveric finding emphasizes the importance of meticulous anatomical dissectionin identifying and differentiating peripheral nerve sheath tumors. Awareness of such rare lesions is crucial for anatomists and surgeon stoensure accurate diagnosis and avoid in advertent nerve injury during surgical procedures.