Cystic degeneration of the peroneus brevis tendon

Case contributed by Dr Roberto Schubert


Recalcitrant pain in the lateral heel. No history of trauma.

Patient Data

Age: 65
Gender: Female

Th peroneus brevis tendon shows a longitudinal split tear at the malleolar level with anterior migration of the longus tendon. The course of the brevis tendon proximal and distal to the lateral malleolus shows a tubular transformation with a thin outer hypointense shell containing fluid equivalent signal.

Case Discussion

The findings are probably caused by extensive mucoid degeneration of the tendon fibers in chronic attrition damage. They are identical to intratendinous ganglia described in a few case reports in the literature1.

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Case information

rID: 24983
Published: 25th Sep 2013
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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