Pattanaprichakul P.Leeyaphan C.Angkasekwinai N.Bunyaratavej S.Senawong S.Sereeaphinan C.Munprom K.Mahidol University2023-10-212023-10-212023-01-01International Journal of Dermatology (2023)00119059https://repository.li.mahidol.ac.th/handle/20.500.14594/90671Background: Cutaneous findings in adult-onset immunodeficiency due to anti-interferon gamma autoantibodies (anti-IFN-γ autoAbs) are common. Currently, data on this topic are scarce. Methods: We retrospectively reviewed medical records of 202 skin episodes from 77 patients diagnosed with adult-onset immunodeficiency due to anti-IFN-γ autoAbs. The exclusion of drug eruptions left 180 episodes from 74 patients for further analysis. Results: Reactive dermatosis was diagnosed in 66.1%, followed by disseminated skin infection (18.3%) and local skin infection (15.6%). Neutrophilic dermatosis (ND) tended to appear on the upper part of bodies, while leg lesions were common in the non-ND. Disseminated infection occurred more frequently with ND. Mycobacterium abscessus was the most common pathogen of concomitant infection. Remission was achieved in 21.6% and was significantly associated with females. Conclusion: Reactive dermatosis was the most common skin manifestation. ND was found in the upper part of bodies and associated with disseminated infection. Drug-free remission was scarcely achieved.MedicineArticleSCOPUS10.1111/ijd.168702-s2.0-851738361981365463237828737