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Year : 2014  |  Volume : 2  |  Issue : 2  |  Page : 109-112

Acute generalized exanthematous pustulosis in a patient with plaque psoriasis

1 Department of Dermatology, King Abdul Aziz Hospital, Makkah, Saudi Arabia
2 Section of Dermatology, King Abdul Aziz Medical City, National Guard Hospital, Jeddah, Saudi Arabia
3 Department of Pathology, King Abdul Aziz Medical City, National Guard Hospital, Jeddah, Saudi Arabia

Correspondence Address:
Khalid A Al Hawsawi
House # 4148, AL-Takassosi district, Makkah, 6134 - 24323
Saudi Arabia
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DOI: 10.4103/1658-631X.137006

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Acute generalized exanthematous pustulosis (AGEP) is an acute febrile drug eruption characterized by sudden occurrence of numerous, non-follicular, pinhead-sized pustules. This usually occurs 3-5 days after the commencement of treatment. Development of pustular eruptions in patient with plaque psoriasis raises the differential diagnosis of AGEP versus pustular psoriasis of the Von Zumbusch type. Herein, we report a 56-year-old male who came into hospital with history of vomiting fresh blood. The patient was then admitted for management of hematemesis. He is a known case of psoriasis vulgaris, which was still present during admission. During admission, the patient developed pustular skin eruptions associated with fever 4 days after using clindamycin and ceftriaxone. Laboratory investigations revealed leukocytosis and neutrophilia. Histopathological examination showed sub-corneal neutrophilic collection and eosinophils in the papillary dermis. The pustular eruption disappeared completely within ten days after stopping clindamycin and ceftriaxone, confirming the diagnosis of AGEP.

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