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Granulocyte-dependent Autoantibody-induced Skin Blistering

Granulocyte-dependent Autoantibody-induced Skin Blistering

Published on: October 12, 2012

[Acute generalized exanthematous pustulosis].

Lisbeth Rosholm Comstedt¹, Janni Hjortlund Gregersen, Anette Bygum

¹Odense Universitetshospital, Hudafdeling I og Allergicentret, Denmark. lrosholm@hotmail.com

Ugeskrift for Laeger

|February 27, 2010

Summary

Acute generalized exanthematous pustulosis (AGEP) is a rare skin reaction to drugs, often antibiotics. This case highlights amoxicillin-induced AGEP, a condition with sudden pustules and fever, resolving after drug withdrawal.

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Area of Science:

Dermatology
Pharmacology
Clinical Medicine

Background:

Acute generalized exanthematous pustulosis (AGEP) is a rare, severe cutaneous adverse drug reaction.
Beta-lactam antibiotics, particularly penicillins like amoxicillin, are frequent causative agents.
AGEP presents with sudden onset of widespread sterile pustules on erythematous skin, accompanied by fever and neutrophilia.

Observation:

A 34-year-old woman developed a classical presentation of AGEP.
The patient's symptoms emerged rapidly, consistent with the known timeline of AGEP.
The characteristic sterile pustules on an edematous and erythematous base were observed.

Findings:

The case presented is a textbook example of amoxicillin-induced AGEP.
Resolution of cutaneous symptoms and fever occurred within 4-10 days after discontinuing amoxicillin.
Neutrophilia normalized as the skin lesions resolved.

Implications:

This case underscores the importance of recognizing AGEP as a potential adverse drug reaction to amoxicillin.
Prompt identification and withdrawal of the offending antibiotic are crucial for managing AGEP.
Understanding the clinical features aids in differential diagnosis of acute pustular eruptions.