Nicolau syndrome after benzathine penicillin treated with hyperbaric oxygen therapy.

The article describes the case of a 19-year-old Caucasian woman who presented with intense pain and edema in the right buttock and livedoid patches in the entire right lower limb and is unable to move her right foot following benzathine benzyl penicillin injection for tonsillitis. Topics covered include the findings of a pelvis computed tomography (CT) scan and biopsy, the diagnosis of Nicolau syndrome and the response of the patient to hyperbaric oxygen therapy.