Low lying peroneus brevis muscle belly

Dr Akos Jaray et al.

Low lying peroneus brevis muscle belly (LLPB) is a rare congenital anomaly that makes the tendon more prone to tendon tear and subluxation 1,2. This condition is defined by the extension of the muscle belly to the level of the fibular groove.

Differential diagnosis

Peroneus quartus muscle - as an accessory peroneal muscle - should be distinguished from LLPB. Peroneus quartus forms a distinct myotendinous structure in the peroneal compartment with variable lateral insertion.

Article information

rID: 73815
Section: Anatomy
Synonyms or Alternate Spellings:

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Cases and figures

  • Low lying peroneus brevis muscle belly
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