Partial excision of schwannomatosis with fascicular invasion occurring in the ulnar nerve above the elbow: A 1-year follow-up study

Chang, Moon Ho; Kie, J.H.; Chae, J.; Lee, J.-K.

doi:10.1016/j.anplas.2023.01.004

Annales de Chirurgie Plastique Esthétique

2023

DOI: 10.1016/j.anplas.2023.01.004

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Partial excision of schwannomatosis with fascicular invasion occurring in the ulnar nerve above the elbow: A 1-year follow-up study

Moon Ho Chang

J.H. Kie

J. Chae

et al.

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2024

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A Recurrent Schwannoma in the Left Distal Ulnar Nerve

Morrey,

Patel,

Lichterman

2024

Cureus

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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.

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A Recurrent Schwannoma in the Left Distal Ulnar Nerve

Morrey,

Patel,

Lichterman

2024

Cureus

View full text Add to dashboard Cite

show abstract

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Partial excision of schwannomatosis with fascicular invasion occurring in the ulnar nerve above the elbow: A 1-year follow-up study

Cited by 1 publication

References 12 publications

A Recurrent Schwannoma in the Left Distal Ulnar Nerve

A Recurrent Schwannoma in the Left Distal Ulnar Nerve

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