Table 2.
Microscopic placental characteristics of pregnant women with COVID-19.
| Placental Characteristics | N = 29 | |
|---|---|---|
| Microscopic examination of the umbilical cord | Neutrophilic exudate | 4 (13.8%) |
| Amnion with squamous metaplasia | 4 (13.8%) | |
| Neutrophilic infiltrate | 3 (10.3%) | |
| Cuboidal without atypia, foci of squamous metaplasia | 1 (3.6%) | |
| Amnion with neutrophilic infiltrate | 1 (3.4%) | |
| Extraplacental membranes | Fibrin deposition | 27 (93.1%) |
| Presence of necrosis | 18 (62.0%) | |
| Calcifications | 15 (51.7%) | |
| Cysts | 11 (37.9%) | |
| Presence of leukocytes | 9 (31.0%) | |
| Presence of neutrophilic exudate | 5 (17.2%) | |
| Thrombosis | 4 (13.8%) | |
| Delayed placental maturation | 2 (6.9%) | |
| Presence of neutrophilic infiltrate | 1 (3.4%) | |
| Microscopic examination of the placenta | Placental histology compatible with gestational age | 27 (93.1%) |
| Chorionic villi compatible with gestational age | 28 (96.6%) | |
| Placental infarction | 6 (20.6%) | |
| Intervillous thrombosis | 6 (20.6%) | |
| Chorioamnionitis | 6 (20.6%) | |
| Villitis | 4 (13.8%) | |
| Perivillositis | 4 (13.8%) | |
| Intervillositis | 3 (10.3%) | |
| Tissue laminar necrosis | 2 (6.9%) | |