What do you think about DDx of this condition? A 23 year old girl with pain in medial condyl of femur and pain in extention of joint. on exam: tenderness is just seen on medical condyl of femur and no significant decrease in ROM of joint and no locking and crepitation. Mc murey test is positive but I think it is due to local tenderness. She has this condition one year ago but there was nothing in the X-ray and she was asymptomatic until 2 weeks ago. Thanks Dr.