Retroplacental Thrombus

**Semantic type:** Finding

**Definition:** A focus of retroplacental thrombus variably extending into the intervillous space, often with peripheral villous compression. The clot may be wholly or minimally laminated reflecting age.

**Synonyms:** - Parabasal Hematoma - Parabasal Hematoma - Parabasal Thrombus - Parabasal Thrombus - Retroplacental Hematoma - Retroplacental Hematoma