Keywords :
Ankle, Benign, Case report, Foot tumors, Tibial nerve
Citation Information :
Gupta S, Khurana A, Jaggi K, Singh DK, Malhotra R, Rajpal K. Giant Schwannoma of Foot: A Report of Two Cases and Literature Review. J Foot Ankle Surg Asia-Pacific 2024; 11 (1):25-28.
Schwannomas are benign, isolated, and encapsulated tumors originating from schwann cells of the peripheral nerve sheath. Schwannomas usually affect the head and neck region and localization in the lower extremity is exceptionally rare with a reported prevalence rate of 1–10%. A <20 cases of schwannomas of feet have been reported in the literature, most commonly causing compression in the tarsal tunnel, it is however rare for them to be seen more distally. We herein report a rare presentation of giant schwannoma of the foot diagnosed on either a magnetic resonance imaging (MRI) scan or ultrasound scan of the foot which revealed a well-defined, lobulated soft tissue lesion likely of fibrous or neural origin. Both patients underwent an excisional biopsy under spinal anesthesia, with an uneventful recovery period. The postoperative (post-op) follow-up was reported to be normal with no radiological evidence of recurrence. This report of two cases and the included literature review aims to highlight the diagnostic challenges of this rarely encountered entity and the authors hope to raise awareness of lower limb schwannomas and their clinical presentation.
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