Early-onset granulomatous arthritis, uveitis and skin rash: characterization of skin involvement in Blau syndrome KU Leuven
BACKGROUND: Blau syndrome (BS) is a rare monogenic autoinflammatory disease caused by NOD2 mutations. BS classically presents in early childhood as a triad of granulomatous polyarthritis, uveitis and skin involvement. Joint and ocular involvement have been characterized by several cohort studies but only very little data are available on skin lesions. OBJECTIVES: We aimed to provide a detailed clinical and microscopic analysis of skin ...