case_images: PMC4380089_01
case_images: Sonographic images of the left adnexal region with and without color Doppler: large left adnexal mass (blue arrows), measuring approximately 6.3 x 3.9 cm, with heterogeneous echogenicity and no appreciable flow on color Doppler (red arrows). There is a moderate amount of free fluid (green arrows). Left ovary not definitively visualized.
case_images: CRIOG2015-740376.001.jpg
case_images: PMC4380089_01_CRIOG2015-740376.001.jpg
case_images: fig1
case_images: Transvaginal sonography was performed (Figures 1(a), 1(b), and 1(c)) and revealed a left adnexal mass measuring 6.3 x 3.9 centimeters (Figure 1(a)) with no Doppler flow (Figure 1(b)) and a large amount of complex free fluid in the pelvis (Figure 1(c)).
case_images: Ovarian cyst with hemorrhage, decidua, and trophoblastic tissue.
case_images: CRIOG2015-740376.002.jpg
case_images: PMC4380089_01_CRIOG2015-740376.002.jpg
case_images: fig2
case_images: Postoperatively, the patient recovered without any adverse events and was followed with serum beta-hCG levels which declined appropriately.  Figure 2 shows the pathologic analysis of the specimen from the procedure; it confirms the diagnosis of an ovarian pregnancy.