Localised swelling of the skin containing a pocket of fluid collected in the upper layers of the skin. Blisters can be produced by burns. Post mortem blisters are formed by production of gas during putrefaction.

1. Blister – Antemortem vs Postmortem
2. Abrasion
3. Tracheal shift to right due to thyroid swelling
4. Carboxyhemoglobin