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: Pathology
[{'content': '"Chicken-wire" appearance of enlarged bone marrow spaces is seen in: \nSelect and explain. \nA. Fetal alcohol syndrome, B. Sickle cell anaemia, C. Haemophilia A, D. Beta thalassemia major', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In the jaws in beta thalassemia, there is generalized rarefraction of alveolar bone, thinning of cortical bone, and a “chicken-wire” appearance of enlarged marrow spaces and coarse trabeculation.\xa0\nIn some cases, the lamina dura may be thin, the roots of the teeth\xa0short, and the premaxilla prominent.\n\nPoynton HG: Oral radiology, Baltimore, 1982, Williams & Wilkins, Page: 230-232.', 'role': 'assistant'}]