Diabetic Myonecrosis: Lessons in Recognizing and Treating a Rare Complication.

Diabetic myonecrosis is a rare complication of poorly controlled diabetes that presents as spontaneous limb pain and swelling. It is associated with other microvascular diabetic complications such as nephropathy or retinopathy and is frequently misdiagnosed given its resemblance to infectious and vascular complications. We present a case of a 49-year-old male with poorly controlled type 2 diabetes and a history of recurrent thigh pain. This was initially treated as cellulitis, but the patient experienced persistent severe pain despite multiple rounds of antibiotics. Imaging with MRI ultimately confirmed a diagnosis of diabetic myonecrosis. The patient was successfully managed with a combination of aspirin, insulin therapy, and a multimodal pain regimen, leading to significant clinical improvement. This condition poses a diagnostic challenge due to its rarity and nonspecific presentation, often leading to delays in appropriate treatment. Prompt diagnosis with exclusionary testing and imaging, followed by appropriate management, can prevent severe complications. Additional research is needed to establish a standardized protocol for treating this condition.