Medial malleolar bone lesion


Description of patient (type of occupation, indication of age, intensity of sport):

33 years old male.

History and previous treatment:

Deep ankle pain for years. Brace, conseravative treatment not successful. MRI in 2013 and 2015

Current complaints:

Pain increased in the last year, after walking, running deep ankle pain.

Physical examination:

No instability, no impingement sign. Slight tenderness at the medial malleolar corner. No fluid in the joint.


X-ray from 2013, no abnormalities.

Additional investigation (CT/MRI):
[Picture 1 + 2]


Case summary:

Young male with ankle deep pain, MRI shows a lesion in the medial malleolus.

Question(s) to this case:

What is that in the medial malleolus? Is that the origin of the pain? How to treat?


This is an intraosseous ganglion. Treatment can be with retrograde drilling and filling of the defect with an autograft.