Subchorionic hemorrhage

Case contributed by Dr Rania Adel Anan

Presentation

First trimester bleeding. Gestational age by LMP 13 weeks + 5 days

Patient Data

Age: 25 years
Gender: Female
Ultrasound

A single living fetus with normal heartbeats (148 b/min).

A large hypoechoic crescent-shaped fluid collection with internal septations is seen extending between the uterine wall and the chorionic membrane posteriorly reaching the placental margins and crossing the internal os, coping with subacute/chronic subchorionic hemorrhage.

Case Discussion

Subchorionic hemorrhage is the most common type of perigestational hemorrhage where blood collects between the chorion and endometrium. It typically occurs within the first 20 weeks of gestation.

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