This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Skin
[{'content': 'Which of the following is not a feature of neonatal lupus erythematosus? \nSelect and explain. \nA. Cutaneous lesions, B. Hea block, C. Anti Ro positivity, D. Thrombocytopenia', 'role': 'user'}, {'content': "Answer: C \nExplanation: Neonatal lupus erythematosus (NLE) is a disorder caused by the transplacental passage of maternal antibodies. The most frequent clinical manifestations are cutaneous lesions andcongenital hea block (CHB). Approximately 50% of NLE infants manifest skin lesions at bih or occur in the first few weeks of life as an erythematous eruption on the face and periorbital skin (raccoon sign/owl-eye/eye mask). Thrombocytopenia may occur in up to 20% ofcases and does not usually require treatment. The main antibody is Ro/SS-A. Ref: Rook's textbook of dermatology, Edition-8, Page-51.49.", 'role': 'assistant'}]