<prompt> All of the following statements about necrotizing fasciitis are true, exceptInfection of fascia and subcutaneous tissueMost commonly caused by Group A beta hemolytic streptococciMost common site is perineum followed by trunk and extremitiesSurgical debridement is mandatory  <response>: NSTIs necrotizing soft tissue infections can occur in any area of the body but are most commonly seen in the extremities, perineum, and genitalia, with fewer arising on the chest or the abdomen extremities are more common Fournier gangrene is a type of necrotizing fasciitis or gangrene affecting the perineum 