The aim of this study is to outline the common dermatological findings in pediatric rheumatologic diseases. A total of 45 patients, nineteen with juvenile idiopathic arthritis (JIA), eight with Familial Mediterranean Fever (FMF), six with scleroderma (SSc), seven with systemic lupus erythematosus (SLE), and five with dermatomyositis (DM) were included. Control group for JIA consisted of randomly chosen 19 healthy subjects of the same age and gender. The age, sex, duration of disease, site and type of lesions on skin, nails and scalp and systemic drug use were recorded. χ2 test was used. The most common skin findings in patients with psoriatic JIA were flexural psoriatic lesions, the most common nail findings were periungual desquamation and distal onycholysis, while the most common scalp findings were erythema and scaling. The most common skin finding in patients with oligoarthritis was photosensitivity, while the most common nail finding was periungual erythema, and the most common scalp f indings were erythema and scaling. We saw urticarial rash, dermatographism, nail pitting and telogen effluvium in one patient with systemic arthritis; and photosensitivity, livedo reticularis and periungual erythema in another patient with RF-negative polyarthritis. Vascular skin lesions like Raynaud’s phenomenon, livedo reticularis, palmar erythema, periungual telangiectasia and nailfold abnormalities were common in SLE, DM and SSc. Patients with FMF displayed signs of atopy. Specific skin lesions can be the peculiar features of rheumatologic diseases in pediatric population. Since it is not always easy to perform biopsy in children to confirm skin involvement of a rheumatologic disease, skin findings can help both dermatologists and rheumatologists in diagnosis.
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