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: Surgery
[{'content': 'What will be the diagnosis of the child with pulsatile swelling on medial side of the nose - \nSelect and explain. \nA. Teratoma, B. Meningocele, C. Dermoid cyst, D. Carcinoma of ethmoid bone', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans is \'b\' ie Meningocele "Meningocele (protrusion of the meninges with CSF), or Encephalocele (protrusion of the brain) or Meningoencephalocele (protrusion of the meninges as well as brain) are sometimes met with at the roof of the nose, the occipital region or anterior fontanelle. The), are diagnosed by their typical situation (in the midline) impulse on coughing or crying and translucency."- S. Das manual', 'role': 'assistant'}]