This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Radiology
[{'content': 'Craniotabes is seen in \nSelect and explain. \nA. Rickets, B. Ostegenesis imperfect, C. Hydrocephalus, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) Rickets # Craniotabes is an abnormal softening or thinning of the skull, although normally present in new boms.> Seen mostly in occipital bone & posterior part of parietal bone.> Bone is soft and has a ping pong ball like feeling on pressing.> The word comes from the German work crani for skull and the Latin word tabes for wasting.> Any condition that affects bone growth, such as rickets, marasmus, syphilis,or thalassemia present during a time of rapid skull growth can cause craniotabes.lt can be a "normal" feature in premature infants.', 'role': 'assistant'}]