This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'Caseous necrosis is seen in \nSelect and explain. \nA. TB, B. Sarcoidosis, C. Cryptococcal infection, D. Gangrene', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Caseous necrosis is encountered most often in foci of tuberculous infection. Caseous means "cheese-like," referring to the friable yellow-white appearance of the area of necrosis.Unlike with coagulative necrosis, the tissue architecture is completely obliterated and cellular outlines cannot be discerned. The area of caseous necrosis is often enclosed within a distinctive inflammatory border; this appearance is characteristic of a focus of inflammation known as a granuloma.( Robbins Basic Pathology, 9th edition, page 10)', 'role': 'assistant'}]