Can You Solve This Case of Severe Calf Pain in a Diabetic Patient?

Case presentation A 54-year-old male with type 2 diabetes mellitus presented with acute, severe pain in his left calf. The pain was significantly worse in the left calf compared to the right and had progressively intensified over the past few days.

Medical history Longstanding hypertension Previous laser photocoagulation for diabetic retinopathy On maintenance hemodialysis since 2020 for chronic kidney disease, suspected to be secondary to diabetic nephropathy Physical examination Pulse: 80 bpm Blood pressure: 130/80 mmHg Edema present in both feet Tenderness in the left calf No pallor, facial puffiness, or icterus Cardiovascular: Normal heart sounds Respiratory: Clear lung fields Abdominal: Unremarkable No renal angle tenderness or organomegaly Laboratory findings Creatine phosphokinase: 194.3 U/L Serum iron: 43.19 mg/dl Total iron-binding capacity: 222.19 mg/dl Transferrin saturation:…