ABSTRACT:GATA2 mutations have been identified in various diseases, such as monoMAC syndrome, Emberger syndrome, familial myelodysplastic syndrome, acute myeloid leukemia, and dendritic cell, monocyte, B and NK cell deficiency. These syndromes present a wide range of Accepted Article. clinical features, dominated by severe infections and haematological disorders such as myelodysplastic syndrome. Up to 70% of GATA2-mutated patients have dermatological features, mainly genital or extra-genital warts, panniculitis or erythema nodosum, and lymphedema. We report 3 patients presenting with common dermatological and haematological features leading to the diagnosis of GATA2 deficiency, but also with skin manifestations that have not been previously described: gingival hypertrophy, macroglossitis and glossitis, and granulomatous lupoid facial lesions. Dermatologists can encounter GATA2-mutated patients and should recognize this disorder. INTRODUCTION:

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