1. Sequential ultra structure changes in coagulative necrosis (Left) and apoptosis (Right)

2. Organ:Kidney
Lesion:showing coagulative necrosis represented by  pyknosis, karyolysis and karyorrhexis.
Dignosis: Coagulative necrosis.

3. Organ:Muscle
Lesion: showing coagulative necrosis represented by nuclear changes and cytoplasmic changes with infiltrated with inflammatory cells
Diagnosis: Coagulative necrosis (Zenker's necrosis), H&E

4. Organ: Kidney
Lesion: There are maintenance of cellular architectural but disappears of detaile.
Diagnosis: coagulative necrosis of the epithelium lining

5. Organ:Lymph node of cattle
Lesion: Lymph node infected with tuberculosis showing caseous necrosis characterized by replacement of the lymphoid tissue with eosinophilic and basophilic debri.
Diagnosis: caseous necrosis

6. Organ:Lung
Lesion: Lung showing  liquifactive necrosis represented by replacement of the pulmonary tissue with structureless basophilic materials.
Diagnosis: liquifactive necrosis

7. Organ:Adipose tissue
Lesion showing fat necrosis represented by foci of shadow outline of necrotic fat cell containing  pink  crescentic crystals. Moreover, the nuclei are pyknotic and the necrotic area surrounded by inflammatory reaction.
Diagnosis:Fat necrosis.

8. Calf feet showing dry gangrene

9. Organ:Muscle of cattle
Lesion : there are infected with clostridium .You can  find the hematoxylin-stained bacilli and nearby the dead voluntary muscle fibers. There are a few nuclei visible in the lesion and the cells are very eosinophilic
Diagnosis: moist gangrene

10. Organ:Lymph node of cattle
Lesion showing air bubble due to clostridial infection H&E.
Diagnosis: gas gangrene.