This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Pathology
[{'content': 'Collapsing glomerulopathy is seen in? \nSelect and explain. \nA. Post streptococcal GN, B. HIV, C. IgA nephropathy, D. Tuberculosis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., HIV Collapsing glomerulopathy:* It is a morphological variant of FSGS. Characterized by collapse and sclerosis of the entire glomerular tuft in addition to the usual FSGS lesions. A characteristic feature is proliferation and hypertrophy of glomerular visceral epithelial cells (podocytes). There is prominent tubular injury with formation of microcystes. It is the most characteristic lesion of HIV nephropathy.", 'role': 'assistant'}]