Necrosis & types of Necrosis

Necrosis

Necrosis is the characteristic light microscopic changes resulting from enzymatic degradation of nucleus and cytoplasm at the point of no return.

Necrosis usually appears 12- 18 hours after cell death.

Characteristics of Necrotic Cells and Tissues

Characteristics of necrotic cells and tissues are of two types. These are-

1.      Gross characteristics of necrotic tissue and

2.      Microscopic characteristics of necrotic cell.

 

Types/Forms/Classification of Necrosis

•      On the basis of gross characteristics of necrotic tissue-

1.      Coagulation necrosis,

2.      Caseation necrosis and

3.      Liquefaction necrosis.

•      On the basis of tissue involvement-

1.      Fat necrosis and

2.      Zenker’s necrosis.