Salmonella typhi Bacteremia With Infective Fasciitis and Psoas Abscess: A Rare and Challenging Presentation.

Enteric fever, caused by Salmonella typhi or paratyphi, remains a significant global health issue, especially in endemic areas. The disease typically presents with prolonged fever, abdominal discomfort, and gastrointestinal symptoms. However, complications such as infective fasciitis and muscle abscess, though rare, can occur and lead to severe consequences. We present a case of a 29-year-old male diagnosed with S. typhi infection, who developed infective fasciitis of the lower psoas and iliacus muscles, with early abscess formation. This case underscores the potential for atypical presentations of enteric fever and highlights the importance of early diagnosis and appropriate antibiotic therapy to prevent severe complications. This report also discusses diagnostic challenges, treatment options, and the evolving resistance patterns to common antibiotics to manage enteric fever.