RBPMS::NTRK3-rearranged sacral malignant spindle cell tumor in neurofibromatosis diagnosed by RNA sequencing: a case report and literature review
Malignant spindle cell tumors arising in patients with neurofibromatosis are diagnostically challenging because malignant peripheral nerve sheath tumor (MPNST) and emerging NTRK-rearranged mesenchymal neoplasms may show overlapping clinical, histological, and immunophenotypic features. We report a 31-year-old man with...