Is Salmonella Infection Another Possible Trigger for Polyarteritis Nodosa?

Area of Science:

• Rheumatology
• Infectious Diseases
• Dermatology

Background:

• Polyarteritis nodosa is a systemic necrotizing vasculitis primarily affecting medium-sized arteries.
• While often idiopathic, infectious agents are recognized triggers for polyarteritis nodosa.
• Salmonella Typhi is a bacterium that has been anecdotally linked to polyarteritis nodosa.

Purpose of the Study:

• To present a clinical case of polyarteritis nodosa following Salmonella Typhi infection.
• To emphasize the diagnostic challenges and histological confirmation of this association.
• To highlight the potential role of Salmonella infection as a trigger for polyarteritis nodosa.

Main Methods:

• Case report of a 72-year-old male presenting with symptoms of infection and subsequent vasculitis.
• Clinical diagnosis of Salmonella Typhi infection.
• Histopathological examination of skin biopsy confirming polyarteritis nodosa.

Main Results:

• The patient experienced fever, diarrhea, and hemodynamic instability, diagnosed as Salmonella Typhi infection.
• Following infection resolution, the patient developed characteristic skin lesions, testicular pain, and weight loss.
• Skin biopsy revealed histological features consistent with polyarteritis nodosa.

Conclusions:

• Salmonella infection may serve as a potential trigger for the development of polyarteritis nodosa.
• A high index of suspicion is crucial for early diagnosis and management of polyarteritis nodosa.
• Histological confirmation is essential in establishing the diagnosis of polyarteritis nodosa.