Serendipitous discovery of a benign obturator nerve schwannoma: Case report with a brief clinical review

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Abstract

Schwannomas are typically benign tumours of the peripheral nerves. However, they seldom arise from the obturator nerve. We report a case of an uncommon swelling (2.5 × 3.5 cm) in a 65-year-old male cadaver, found during a routine dissection session for first Bachelor of Medicine and Surgery students in the Department of Anatomy, Kasturba Medical College, Manipal, India, in 2019. It was seen originating from the left obturator nerve in the pelvis at the level of the sacral promontory. Histopathological investigation revealed a schwannoma. The hypocellular tumour was arranged in a sweeping fascicle pattern with patches of myxoid degeneration. Obturator schwannomas, though rare, can exist in cadavers, as seen in the present case. Hence, it should be considered as a differential diagnosis for clinical cases of pelvic masses and eliminated only after thorough radiological examination. Knowledge about the existence of such schwannomas is therefore essential.

Original languageEnglish
Pages (from-to)477-480
Number of pages4
JournalSultan Qaboos University Medical Journal
Volume21
Issue number3
DOIs
Publication statusPublished - 08-2021

All Science Journal Classification (ASJC) codes

  • General Medicine

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