Rapidly Progressive Necrotizing Soft Tissue Infection of the Chest Wall After Skeletal Muscle Injury in a Healthy Young Adult Leading to Death: A Case Report

Background: Necrotizing soft tissue infections (NSTIs) are life-threatening surgical emergencies characterized by rapid tissue destruction, systemic toxicity, and high mortality. Early recognition and aggressive treatment are critical. Case Presentation: A previously healthy 28-year-old male presented with one week of right shoulder and chest wall pain. Initially diagnosed with muscle strains via MRI, he re-presented to the emergency department five days later with hypotension. Blood cultures grew Streptococcus pyogenes , and imaging revealed extensive soft tissue involvement. Emergent fasciotomy and serial debridement revealed NSTI extending from the right shoulder to the scrotum and contralateral shoulder. Despite broad-spectrum antibiotics, debridements, continuous renal replacement therapy, and vasopressors, the patient developed multi-organ failure and died within 24 h of ICU admission. Conclusion: This case highlights the aggressive nature of NSTIs, the importance of early diagnosis, a non-classical presentation, and the potential for rapid progression to multi-organ failure and death even in young, previously healthy individuals.