Post-Streptococcal Neutrophilic Pustular Dermatosis: Expanding the Histopathological Paradigm of Reactive Neutrophilic Dermatoses.
Gustavo Almeida-Silva, Joana Antunes, Inês Pereira Amaral et al.
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Case in brief
A 52-year-old woman presented with a 2-day history of a pustular eruption on acral areas following streptococcal pharyngitis. A skin biopsy showed a dense neutrophilic infiltrate and microabscesses in the dermal papillae, confirming post-streptococcal pustulosis. The condition resolved within 2 weeks with topical steroid treatment.
Diagnostic / clinical pearl
Clinicians should consider post-streptococcal pustulosis in patients with pustular eruptions following streptococcal infections, particularly when differentiating from AGEP and pustular psoriasis.
Why it matters
This case emphasizes the importance of recognizing post-streptococcal pustulosis as a distinct entity within reactive neutrophilic dermatoses, aiding in accurate diagnosis and management.