Fig. 1From: An acquired plica-induced notch in the medial femoral condyle in a patient with medial patellar plica syndrome: a case reportPreoperative axial (a) and sagittal (b) proton density-weighted images showing medial patellar plica (white arrows). c Idiopathic groove is observed in the articular surface of the medial femoral condyle (white asterisk). d Postoperative axial proton density-weighted image after excision of the medial patellar plicaBack to article page