RESUMEN
El lupus neonatal es un síndrome raro que afecta a recién nacidos y lactantes, que se define por la presencia e autoanticuerpos maternos y características clínicas, como lesiones cutáneas típicas, bloqueo cardíaco completo, miocardiopatía, alteraciones hematológicas y hepatobiliares. Presentamos un lactante de 5 semanas derivado desde Atención Primaria por lesiones cutáneas anulares en tronco, cuero cabelludo y cara. Como antecedentes destaca en la mare afecta de síndrome Overlap (esclerosis sistémica, lupus y miositis). Se inicia estudio confirmándose el diagnóstico de lupus neonatal mediante punch biopsia y ANA moteado positivo con anti SSA-Ro y anti RNP positivos (AU)
Neonatal Lupus Erythematosus is a rare disroder that affects newborns and infants and it is caused by mother´s autoantibodies and several clinical features as typical skin rash, congenital complete heart block, miocardiapathies, haematoligical and hepatobiliary diseases. We attended a 5 weeks male infant, who was derived from the primary care center because of an annular skin rash on trunk, scalp and face. There was maternal history of Overlap syndrome (systemic sclerosis, lupus and myosistis). Diagnosis of neonatal Lupus was made by the skin biopsy and an ANAs with autoantibodies against Ro and U1-ribonucleoprotein (RNP) (AU)