Medications
Insulin 70/30 bid, lisinopril 20 mg daily, ASA 81 mg daily and simvastatin 40 mg daily.
Physical examination
![Image](http://neuromuscular.wustl.edu/pics/people/patients/Hands/diabmuscnec.jpg)
Afebrile, and there was no evidence of arthritis or effusion. There was swelling and tenderness in the left distal quadriceps area and calf with limited range of motion of the knee. Peripheral pulses and sensation were normal.
What is the most likely diagnosis?
What tests would you order?
What treatment would you start for this patient?