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Long Completely Cystic Sciatic Schwannoma: A Rare Case
Sri Andreani Utomo1,2, Abdul Hafid Bajamal3, Muhammad Faris3
1Doctoral Program Health Science, Airlangga University, Surabaya, Indonesia.
Case Reports in Oncology
|May 12, 2021
Summary
This study reports a rare case of a completely cystic sciatic schwannoma causing chronic sciatica. Surgical resection was necessary when conservative treatments failed to alleviate symptoms.
Area of Science:
- Oncology
- Neurology
- Radiology
Background:
- Schwannomas are common peripheral nerve sheath tumors, typically benign.
- Malignant transformation of schwannomas is rare.
- Schwannomas most frequently occur in the head and neck region.
Observation:
- Sciatic nerve schwannomas are rare, accounting for less than 1% of all schwannomas.
- Completely cystic sciatic schwannomas are exceptionally uncommon.
- This case involved a long, completely cystic sciatic schwannoma in the L5-S1 foraminal zone presenting with chronic sciatica.
Findings:
- The schwannoma mimicked degenerative spinal pathology, causing sciatica and neurological deficits.
- Diagnosis was achieved through conventional MRI and MR neurography.
- Histopathological confirmation followed surgical resection.
Implications:
- This case highlights the importance of considering rare cystic sciatic schwannomas in the differential diagnosis of sciatica.
- Surgical intervention is indicated for persistent symptoms, recurrent cysts, or neurological deficits unresponsive to conservative management.
- Advanced imaging techniques like MR neurography are crucial for accurate diagnosis of such rare peripheral nerve tumors.
