IMPORTANCE Azathioprine hypersensitivity syndrome can present clinically and histopathologically like Sweet syndrome. Shared clinical features include fever, constitutional symptoms, prompt response to systemic corticosteroid therapy, neutrophilia, and abrupt onset of erythematous cutaneous lesions. Histologically, both azathioprine hypersensitivity syndrome and Sweet syndrome are rich in neutr...

Background: Paederus dermatitis, an acute erythemato-vesiculo-bullous dermatitis contracted through contact with the secretions of the Paederus species, is frequently seen among the people living in the south-west part of our country during spring and early summer months. Objective: This study was conducted to elucidate the responsible arthropod in Khuzestan province and to study the clinical s...

Vol. 29, No. 4, 2017 497 Received May 30, 2016, Revised July 25, 2016, Accepted for publication July 28, 2016 *These authors contributed equally to this work and should be considered co-first authors. Corresponding author: Chun Wook Park, Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, 1 Singil-ro, Yeongdeungpo-gu, Seoul 07441, Korea. Tel: 82-2-8...

BACKGROUND In Inner Mongolia, China, more than 300,000 people are chronically exposed to arsenic via their drinking water. We have previously reported that the prevalence of arsenical dermatosis was as high as 40% in the Hetao Plain area. However, the association between exposure to arsenic in drinking water and adverse health effects has not been fully examined. The purpose of this study was t...

BACKGROUND Chronic cutaneous graft-vs-host disease (GVHD) is generally classified by whether lesions have a lichenoid or sclerodermatous morphology. Other unusual clinical forms have been reported that exhibit the features of dermatomyositis and lupus erythematosus. Within a large population of individuals who underwent allogeneic stem cell transplantation because of hematologic malignancy, a g...

neutrophilic dermatosis of the hands is a rare entity, with no more than 30 well-documented cases reported in the literature.1 nearly a third (27%) of these cases are associated with tumors, whereas an association with rheumatoid arthritis is rare.2 We describe the case of a 46-year-old woman with longstanding seropositive rheumatoid arthritis. The disorder was controlled by a weekly dose of 15...