Antishkow's cells are seen in

Ans. is 'a' i.e.,Rheumatic hea disease Anitschkow (or Anichkov or catterpiller) cells are often cells associated with rheumatic hea disease.Anitschkow cells are enlarged macrophages found within granulomas (called Aschoff bodies) associated with the disease.Aschoff bodies (Aschoff nodules) are characteristic inflammatory lesions of acute rheumatic fever found in any of the three layers of hea, but mostly seen in myocardium (myocarditis).They consist of foci of collagen surrounded by following cells : Lymphocytes (especially T-cells), plasma cells, aschoff giantcells, antischkow cells, histiocytes and fibroblasts. Neutrophils (polymorphonuclear cells) are characteristically absent.