Antemoem blister differs from postmoem blister by
The first picture shows postmoem blister, the second one is antemoem blister. The antemoem blister : Has no gas and hyperemia is due to increased permeability of capillaries is prominent. Blisters are found mainly in scalds and heat burns which contains albumin and chlorides. Are mostly produced during burns. Surrounded by an area of hyperemia (Floor is reddened with swelling of papillae) Features of postmoem blisters :- No surroundinghyperemia- Floor is not reddened
Presence of Albumin & Chloride in blister fluid
Gas in blister
Dry hard surface of the floor of blister
Absence of hyperemia around the blister
Thanatology