This is a peculiar situation that presents to my clinic from time to time. The patient complains of a painful swelling over the top of the foot. This lump feels bony and can be “unsightly”.

Metatarsal Base Bony Bossing

Metatarsal Base Bony Bossing | HC Chang Orthopaedic Surgery

A possible diagnosis is a ganglion.  This is a fluid-filled sac arising next to the joint or tendon sheath.

However, in this case, the problem is bony bossing of the base of the bone of the foot (metatarsal bone).

A simple x-ray of the foot taken in the “true-lateral” view with clinch the diagnosis.

Tarso-Metatarsal Joint Osteophyte

Tarso-Metatarsal Joint Osteophyte

A zoomed in view:

TMTJ Osteophytic Spurs

TMTJ Osteophytic Spurs

The treatment can be avoiding tight  shoes that presses onto the bony spur or surgically remove the bony spur.

Find out more about other related ankle & foot conditions and treatments from our orthopaedic surgeon in foot injuries.

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