Necrotizing myositis is another type of necrotizing skin infection with a very similar clinical appearance to necrotizing fasciitis, the difference being that the necrosis extends to include skeletal muscle tissue, which anatomically lies below the fascia. It is associated with the same bacterial pathogens. It is extremely rare, with very few cases described in the literature. Also, it is fatal if left untreated. Cases that have been described in the literature note the diagnostic difficulty due to diverse clinical presentation, and that misdiagnosis as non-infectious causes such as compartment syndrome is much more common than not. MRSA as the primary cause of necrotizing myositis is also less common as the majority of the cases in the literature are caused by GAS.
Necrotizing myositis medical expert witness specialties include infectious disease, vascular surgery, emergency medicine, radiology, microbiology, emergency medicine, urgent care medicine, critical care medicine, pediatric emergency medicine, and forensic pathology.