Table 5.
Typical cell morphometric findings at different stages of postmortem decomposition.
| Stage of decomposition | Cell shape | Cell size | Cell membrane findings | Common artifacts |
|---|---|---|---|---|
| Antemortem | Intact | No change | Not applicable | Not applicable |
| Oncotic | Largely intact | Mild to moderate swelling or shrinkage is likely | May have blebbing or compression | Pericellular and perivascular rarefactions; vacuolization |
| Early necrotic | Largely intact | Some cells, especially astrocytes, are excessively enlarged, while others begin to shrink | Cell membranes may be indistinct, blurry, or partially damaged | Above artifacts, but more widespread and severe; intracellular contents may be seen in extracellular space |
| Late necrotic | Altered | Cells shrink as they dissolve | Cells are dissolved | Washed out tissue areas devoid of cells |