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': "Lymph node biopsy of an AIDS patient shows: March 2009 \nSelect and explain. \nA. Wahin-Finkeldey cells, B. Marked follicular hyperplasia, C. 'Moth-eaten appearance', D. All of the above", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. D: All of the above Histopathology of HIV Florid reactive hyperplasia-may be: - Collections of monocytoid B cells in sinuses - Neutrophils - Features of dermatopathic lymphadenopathy Often reactive germinal centers show 'follicle lysis':i.e. invagination of mantle lymphocytes into germinal centers associated with: - Disruption of centers ('moth-eaten appearance') - Distinctive clustering of large follicular center cells resulting appearance termed explosive follicular hyperplasia Occasional polykaryocytes: - Wahin-Finkeldey cells - May be multinucleated form of follicular dendritic cell Electron microscopy: - Sometimes prominent follicular dendritic cells exhibit alterations of their fine processes Interfollicular tissue may show prominent vascular proliferation: vague resemblance to Castleman's disease - These areas and subcapsular region may reveal earliest signs of Kaposi's sarcoma - Sometimes advanced lymphocyte depletion: may be abnormal (regressively transformed) germinal centers", 'role': 'assistant'}]