“…At present fewer than 80 cases have been documented in the literature [ 6 ]. This incidence may not be an accurate reflection, because the condition may be asymptomatic, and diagnosis may happen accidentally by MRI, with patients being advised to leave the condition untreated if there are no severe symptoms [ 3 , 6 ]. However, in the literature, some cases are reported as having different symptoms, such as locking and effusion, medial knee pain, a limited range of motion in the affected knee and clicking, but in our case, the patient complained of pain and a limited range of motion in the left knee after exertion [ 3 , 4 , 7 ].…”