Twenty-one pregnancies with sonographic evidence of subchorionic hemorrhage were ... evaluation included the relative and absolute size of the hematoma, its echogenicity and location in relation ...

Sonograms showed a subchorionic hematoma in 62 patients (18%). The average size of the hematoma was 20 ml (range, 2-150 ml). The rate of spontaneous abortion was the same in patients with and ...