Diffuse sterile pustular eruption with changing clinical features in a 2-year old.

Area of Science:

• Dermatology
• Pediatric Dermatology
• Clinical Case Study

Background:

• Pustular eruptions in children can be challenging to diagnose and classify.
• The differential diagnosis for diffuse pustular eruptions is broad.
• Association with systemic infections like respiratory tract infections is noted.

Purpose of the Study:

• To describe a unique case of evolving pustular dermatosis in a pediatric patient.
• To highlight the diagnostic challenges in classifying different forms of pustular eruptions.
• To report treatment outcomes for a complex case of pediatric pustular eruption.

Main Methods:

• Case report of a 2-year-old girl with diffuse pustular eruptions.
• Clinical observation of disease evolution over time.
• Treatment with acitretin, dapsone, and ultraviolet B-narrowband (UV-B-NB) phototherapy.

Main Results:

• The patient's pustular eruption evolved from circinate to von Zumbush pustular psoriasis, then to subcorneal pustular dermatosis.
• Initial treatment with acitretin yielded good results.
• Relapses were effectively managed with dapsone and UV-B-NB phototherapy, with subsequent relapses controlled by short cycles of UV-B-NB.

Conclusions:

• Pustular eruptions can exhibit diverse clinical patterns over time, even within the same patient.
• Classifying pustular eruptions as distinct entities can be difficult due to overlapping and evolving clinical features.
• This case underscores the importance of considering disease evolution and varied treatment responses in managing pediatric pustular dermatoses.