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': 'Posterior atrophic candidiasis is also known as: \nSelect and explain. \nA. Geographic tongue, B. Median rhomboid glossitis, C. Black hairy tongue, D. Hemifacial atrophy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: When the posterior dorsal point of fusion of tongue is defective, a rhomboid-shaped, smooth erythematous mucosa lacking in papillae or taste buds is seen. This median rhomboid glossitis (central papillary atrophy, posterior lingual papillary atrophy) is a focal area of susceptibility to recurring or chronic atrophic candidiasis, prompting a recent shift towards the use of posterior midline atrophic candidiasis as a more appropriate diagnostic term.', 'role': 'assistant'}]