Cystic schwannoma of the distal forearm. Case presentation

Vol. 61 No. 3, 2020

ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Valeriu Ardeleanu, Daniel Pirici, Anca Sava, Roxana Folescu, Andrei Gheorghe Marius Motoc

Schwannomas are well-encapsulated, benign tumors arising from Schwann cell constituting the nerve sheaths. We report a case of a cystic conventional schwannoma, measuring 2.5x3 cm, located in the distal forearm of a 33-year-old female patient with no sign of neurofibromatosis type 2 or type 3. The mass was painless, but Tinel s sign was positive. Ultrasonography showed a soft tissue cystic mass diagnosed as being synovial cyst in the left distal forearm. Surgical resection was performed without any complications. Histopathological examinations oriented the diagnosis to a schwannoma, but immunohistochemical stainings proved the tumor origin in Schwann cells and made the differential diagnosis with other pathologies, like neurofibroma, leiomyoma, epithelial cyst, synovial cyst, or ganglion cyst.

Corresponding author: Anca Sava, Professor, MD, PhD; e-mail: dr.anca.sava.68@gmail.com

DOI: 10.47162/RJME.61.3.30 Download PDF
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