Fig. 2From: Acute hemoperitoneum 6 weeks post-laparoscopic salpingectomy—a rare case of secondary peritoneal trophoblast implantationSerum βhCG levels at first presentation showed a greater than 60% increase at 48-h intervals. It decreased following salpingectomy, but was still raised at the second presentation on day 23. The level then initially fell, but started to rise again. It finally fell to less than 1 IU/L 58 days from the first presentation following methotrexate administration on day 30Back to article page