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': "Prussak's space is seen in ? \nSelect and explain. \nA. Epitympanum, B. Hypotympanum, C. Mesotympanum, D. Ear Canal", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., EpitympanumPrussak's space is a small space between the shrapnel's membrane/pars flaccida laterally. neck of malleus medially, sho process of malleus below and lateral process of malleus above.Prussak's space communicates with epitympanum through a posterior gap.Prussak's space is impoant because it is a site for pars flaccida acquired cholesteatoma formation.", 'role': 'assistant'}]