| 总结: | We presented an adolescent with recurrent intracranial hemorrhage and skin lesion. The diagnosis was unclear and the treatment was difficult. Through a multidisciplinary effort type Ⅰ interferon disease was suspected and later, an interferon-stimulated gene was further detected. Considering the high morbidity and fatality rate of recurrent intracranial hemorrhage, tofacitinib and hydroxychloroquine were administered. After treatment, the livedo reticularis was significantly regressed. Unfortunately, the intracranial hemorrhage recurred due to a pre-existing cerebral aneurysm, leading to death of the patient. The diagnosis and treatment of this case highlight the importance of multidisciplinary collaboration in the diagnosis and treatment of difficult and rare diseases.
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