The epitheliod cell and multinucleated giant cells of granulomatous inflammation are derived from: (A) Basophils, (B) Eosinophil, (C) CD4T lymphocytes, (D) Monocytes marcophages
Answer is D. Ref Robbins 9/e p97 Delayed type of hypersensitivity results from accumulation of mononucleated cells around small veins and venules producing a perivascular cuffing .mono cytes transform into macrophages which undergo morphological changes to produce epitheliod cell