Most characteristic feature of acute inflammation is:: (A) Vasoconstriction, (B) Vascular stasis, (C) Vasodilatation and Increased vascular permeability, (D) Margination of Leucocytes
Answer is C. Increased vascular permeability leading to the escape of protein rich fluid into the interstitium is the hallmark of acute inflammation. Ref: Robbins pathologic basis of disease 6th edn/page 53.