Rationale:Ecthyma gangrenosum (Eg) is a necrotic lesion that is mostly seen in immunocompromised patients. It reflects a severe sepsis, possibly caused by Pseudomonas aeruginosa (Pa).Patient concerns:A healthy 3-year-old girl admitted to the Pediatric Emergency Department presented a sepsis-associated purpura with neurological and respiratory distress.Interventions:An empiric antibiotherapy (anti-meningococcal) was prescribed.Diagnoses:Forty-eight hours after admission, blood and wound cultures were positive for Pa. As a result, the decision was made to change the antibiotic therapy.Unfortunately, on day 3, the patient died. Exhaustive immunologic tests are presently being carried out.Outcomes:Eg caused by Pa is uncommon in healthy children, and purpura sepsis is usually caused by Neisseria meningitides infection.Lessons:Eg should be recognized rapidly so that the appropriate treatment can be prescribed as quickly as possible.

No abstract