Caught in the Crossfire: Deep Radial Nerve Branch Neuroma Post Ganglion Excision

Postoperative neuromas are uncommon benign nerve lesions that may develop after surgical procedures. While neuromas are frequently reported in the lower limbs and craniofacial regions, involvement of the radial nerve, particularly its deep terminal branches, is rare. This case study documents a rare postoperative neuroma of the terminal branch of the posterior interosseous nerve (PIN) following dorsal wrist ganglion excision. Ultrasound played a pivotal role in diagnosis and image‐guided management, emphasizing its importance in peripheral nerve evaluation. The patient was treated with ultrasound‐guided steroid injection and physiotherapy, showing partial pain relief at three‐month follow‐up.