Schwannomas of the deep motor branch of the ulnar nerve: a systematic review of the literature with an additional case report and anatomical analysis

In this limited series, available data suggest that accurate preoperative imaging and careful intraoperative microsurgical dissection may lead to favorable outcomes, with complete recovery achievable in schwannomas of the DMBUN. No clear association was observed between postoperative nerve function and tumor size, patient age, or time since symptom onset.