Necrotizing myositis in a neutropenic patient: the use of ultrasound in the diagnosis of atypical presentations.

We report a case of fatal necrotizing soft tissue infection (NSTI) due to Clostridium perfringens (CP) in a neutropenic patient with diabetes mellitus. As in many cases, by the time a diagnosis was made, the condition had rapidly progressed to its late stages, resulting in a fatal outcome. The emergency physician should be aware of NSTI as a complication when patients present with pain out of proportion to physical findings and/or signs of soft tissue compromise.