• Mei Liu, Xin-Yu Ci, Han Huang, and Mei-Juan Zhang.
• Department of Gastroenterology, Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Jinan, Shandong, China.
• Medicine (Baltimore). 2023 Jan 20; 102 (3): e32657e32657.

RationaleDrug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a severe cutaneous drug reaction characterized by fever, lymphadenopathy, hematologic abnormalities, single or multiple organ involvement, and viral reactivation.[1] The most frequently reported offending drugs are aromatic antiepileptic agents, antibiotics, and allopurinol.[2] Though a relatively rare syndrome, DRESS can lead to severe multi-organ system dysfunction, and in some cases even death. DRESS is one of the severe drug eruptions in dermatological diseases, but it is difficult to diagnose for internist. In this paper, a typical drug hypersensitivity syndrome with abnormal liver function and fever as the first manifestations was reported. The objective of this study was to improve the understanding of rare drug hypersensitivity syndrome in digestion and other fields, and to avoid missed diagnosis and misdiagnosis.Patient ConcernsA 33-year-old Chinese female was initially diagnosed with acute hepatic insufficiency. Combined with the suspicious drug history, she developed DRESS with fever, target erythema, left lymph node enlargement, hematological abnormalities, and abnormal liver function.DiagnosesCombined with the above characteristics, liver toxicity is the main manifestation, accompanied by fever, mainly moderate to high fever (above 38 °C) , sporadic rash, other organs (kidney, immune system) damage, and a marked increase in eosinophil granulocytic. Therefore the patient was diagnosed with definite case of DRESS syndrome based on clinical and laboratory findings.InterventionsHormones (methylprednisolone 60 mg/day for 12 days and 80 mg/day for 12 days) and immunoglobulins (intravenous immunoglobulin 10 g/day for 5 days and 20 g/day for 7 days) were given.OutcomesThe patient was discharged from the hospital after recovery. One month after discharge, she was re-admitted to the hospital because of elevated blood sugar and was diagnosed as diabetes.LessonsDRESS syndrome is a rare but life-threatening hypersensitivity reaction. The mortality will be very high if it's not diagnosed and treated timely. This paper presents a successful case of methylprednisolone plus intravenous immunoglobulin therapy, which provides a stronger evidence for the future diagnosis and treatment of the disease.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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