A member asked:

Hard dime size lump just to left of right patella hurts:kneel,touch,bent,stand.don't disappear into joint.ran 3.2mi night before appeared.see:bentknee?

A doctor has provided 1 answer
Dr. Daniel Saurborn answered

Specializes in Diagnostic Radiology

Patellar pain: Patellar pain syndromes are quite common in young female athletes. They are typically due to patellar tracking abnormalities or patellofemoral syndrome. The hard lump you feel could be a bone fragment called "bipartite patella", or less likely a "ganglion cyst". See a sports medicine doctor for physical exam and maybe an x-ray or MRI.

Answered 11/29/2014

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