Fabella in the medial head of the gastrocnemius
Non-specific pain in the medial compartment of the joint
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There are small degenerative changes in the posterior horn of the medial meniscus, a small Baker cyst, as well as a small bony structure in the tendon of the medial head of gastrocnemius muscle, in the area of its attachment site, which is consistent with a sesamoid bone.
In this case, we are dealing with a small bone structure located in the thickness of the tendon, which by definition can be attributed to be a sesamoid bone. In the literature, fabella is almost always found in the tendon of the lateral head of the gastrocnemius, occasionally it is also found on the medial side 1.
- 1. Corvalan C, Tang C., Robinson, M. (2018). Fabella and cyamella of the human knee joint: Discovery by dissection and ultrasound examination. European Journal of Anatomy. 22. 103-109.