title: Photo quiz. Vesicular rash on the flank and buttock.
authors.affiliation: University of Calgary, Alberta Children's Hospital, Canada.
authors.forename: Alexander K C
authors.initials: AK
authors.lastname: Leung
authors.forename: Massoud
authors.initials: M
authors.lastname: Rafaat
mesh_terms: D002644:Chickenpox / Q000150:complications*; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006562:Herpes Zoster / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008297:Male