A Recurrent Schwannoma in the Left Distal Ulnar Nerve.

Autor:	Morrey LM; Medicine, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, USA., Patel S; Orthopedic Surgery, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, USA., Lichterman M; Orthopedic Surgery, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, USA.
Jazyk:	angličtina
Zdroj:	Cureus [Cureus] 2024 Jul 14; Vol. 16 (7), pp. e64535. Date of Electronic Publication: 2024 Jul 14 (Print Publication: 2024).
DOI:	10.7759/cureus.64535
Abstrakt:	While peripheral nerve schwannomas have a relatively low incidence, schwannomatosis, the condition in which one forms multiple recurring schwannomas, is an even rarer phenomenon and can be hard to detect given its ability to mimic other conditions. We report a case of a 35-year-old male who presented with a mass in his left wrist and forearm, volar pain in his forearm, and numbness in his fingers. Magnetic resonance imaging (MRI) revealed a bilobed heterogeneous neural sheath tumor in the distal left ulnar nerve. The tumor was resected including extensive internal neurolysis using a Zeiss operative microscope. Post-operative biopsy confirmed an encapsulated schwannoma. The patient did well initially but developed worsening pain in his forearm and weakness. He had persistent paresthesias in the ulnar nerve distribution. He underwent a repeat MRI almost one year later, which showed thickening of the ulnar nerve proximal to the area of resection with an 8.5 mm hyperintense nodule. The patient underwent a subsequent resection with extensive neurolysis, which confirmed that the mass was a benign non-invasive schwannoma. At six weeks post-surgery, the patient's forearm pain was significantly improved and his range of motion returned to baseline. Our case demonstrates the importance of post-operative follow-up in schwannomas with appropriate imaging if symptoms persist or recur. Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work. (Copyright © 2024, Morrey et al.)
Databáze:	MEDLINE
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