PMC6091418_01
Well-defined hyperintense lesion (depicted by arrows) seen involving the posterior tibial nerve in T2-weighted MRI (a, b).
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T2-weighted images (Figures 1(a) and 1(b)).
Intraoperative images (a, b) showing excision of the mass which was engulfed in the posterior tibial nerve as seen through the microscope which was used to assist excision.
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Under microscope guidance, the nerve sheath was incised and a soft, ovoid mass with few fibres attached medially to the nerve sheath was noted (Figure 2(a)). Careful dissection of the mass was done (Figure 2(b)), and it was excised completely.
Histopathological examination revealing the presence of Verocay bodies with characteristic hypocelluar areas (Antoni A) with intermittent hypercellular areas (Antoni B) confirming the diagnosis of schwannoma.
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