A healthy 17-year-old boy was admitted to the emergency department presenting with a pressure-like sternal pain that started during exercise. His physical examination was normal. Twelve-lead ECG and transthoracic echocardiogram suggested a myocardial infarction. The patient was submitted to an invasive coronary angiography, which revealed a distal occlusion of the left anterior descending artery, due to a spontaneous coronary artery dissection. A balloon angioplasty was performed, with good results. Aetiological study did not discover any pathologic condition. Chest pain in paediatric age is a frequent complaint, despite not being usually caused by a serious condition. However, it is important to remember warning signs in order to diagnose life-threatening diseases, as soon as possible.
Neonatal lupus is an uncommon entity. The main manifestations are cutaneous and cardiac. It is caused by transplacental passage of maternal antibodies (anti-Ro/SSA or anti-La/SSB), and the diagnosis is made by its detection in the mother or child. The authors present a case of a 4-month-old female infant, with a cutaneous eruption since she was 2 months old. She had no relevant personal or family history. Analytically she had an increase in liver enzymes. The histological aspect of the skin biopsy led to an autoimmunity study on the mother and infant, both of which had positive anti-Ro/SSA antibodies, confirming the diagnosis of neonatal lupus. Cardiological study was normal. The skin lesions resolved during the first year of life. Skin lesions are the most frequent non-cardiac clinical manifestation of neonatal lupus, and they are self-limited. When there is no family history, nor cardiac involvement, the diagnosis can be challenging.
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