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
Principal cell in granuloma is 
Select and explain. 
A. Lymphocyte, B. Histiocyte, C. Langhyans, D. Giant cell
B: Histiocyte
Answer: B: Histiocyte 
Explanation: Ans. is 'b' i.e., Histiocyte Granuloma is characteristic ofgranulomatous inflammation. o The major cell of granuloma is epitheloid cell which is a modified tissue macrophage (histiocyte) that has been transformed into epithelium like cell.