Unwinding the Spine: Advanced Diagnostic and Surgical Strategies for Lumbar Dumbbell Schwannoma

We present a rare case of a lumbar dumbbell-shaped schwannoma in a 36-year-old male with persistent lumbar pain and paresthesia. MRI revealed a contrast-enhancing mass at L3–L4 compressing the right L3 nerve root. A combined posterior and retroperitoneal approach enabled complete resection. Histopathology confirmed schwannoma with Antoni A/B areas and S-100 positivity. Postoperatively, the patient had full symptom resolution and no recurrence at three months. This case highlights the importance of timely diagnosis, imaging, and surgical resection for symptom relief and definitive diagnosis in managing lumbar dumbbell schwannomas, with adjunct therapies considered for incomplete or inoperable cases.