Abstract
A hypertrophied peroneal tubercle can present as a bony prominence at the lateral aspect of the foot and a peroneal tenosynovitis or tear. We report a case of a 52-year-old man complaining of lateral foot tingling pain and numbness. The sural nerve entrapment and peroneus longus tenosynovitis by hypertrophied peroneal tubercle were confirmed. Good results were obtained after excision of the hypertrophied peroneal tubercle and sural nerve release.
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![]() | Figure 1.A 52-year-old man with right foot lateral pain anteroposterior radiographs of right ankle show hypertrophied peroneal tubercle of calcaneus (arrow). |
![]() | Figure 2.Using magnetic resonance imaging. (A) T1-weighted axial image shows hypertrophied peroneal tubercle of calcaneus (arrow). (B) T2-weighted coronal image shows focal edema (arrow) and thickening of branch of sural nerve (asterisks). (C) T2-weighted sagittal image shows tenosynovitis of peroneus longus and fluid collection at the proximal level (arrows). |