The malleolus is the protuberance of bone on either side of the ankle.

malleoli
Medial (MM) and lateral (LM) malleoli.

 

Medial or lateral?

The maleolus on the inner side is the medial malleolus (and is part of the tibia bone) and the one on the outer side is the lateral malleolus (and is part of the fibula bone).

Synonyms: 
ankle bone
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Dr Sheila Strover (Editor)
BSc (Hons), MB BCh, MBA

See biography...

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