This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
[{'content': 'In Neuroblastomas the most common presentation is - \nSelect and explain. \nA. Lytic lesion in skull with suture diastasis, B. Lung metastasis, C. Renal invasion, D. Secondaries in brain', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Although the most common presentation of neuroblastoma is an and. mass, option \'a\' is most common among the given options. Sutton writes - "Neuroblastoma frequently metastasizes to the skull. Lesions may involve the suture margins, paicularly the coronal suture, which becomes widened (diastasis) and irregular". Ref : Bailey & Love 25/e p815', 'role': 'assistant'}]