PMC5439247_01
Placental histological features from case 1 at 8 weeks of gestational age [(a), (b), and (c)] and case 2 at 32 weeks of gestational age [(d), (e), and (f)]. Chorionic villi (small arrow) surrounded by tumor trophoblast cells [cytotrophoblast and intermediate trophoblast with patchy small foci of syncytiotrophoblast (arrow)]. Mitotic figures (head arrow).
CRIM2017-7892980.001.jpg
PMC5439247_02_CRIM2017-7892980.001.jpg
fig1
The placenta corresponding to the first twin was 19 x 10 x 3 cm and the microscopic examination showed an intraplacental choriocarcinoma characterized by focal proliferation of both cytotrophoblast and syncytiotrophoblast in the intervillous space without involvement of the adjacent chorionic villi (Figures 1(d), 1(e), and 1(f)).
PMC5439247_02
Placental histological features from case 1 at 8 weeks of gestational age [(a), (b), and (c)] and case 2 at 32 weeks of gestational age [(d), (e), and (f)]. Chorionic villi (small arrow) surrounded by tumor trophoblast cells [cytotrophoblast and intermediate trophoblast with patchy small foci of syncytiotrophoblast (arrow)]. Mitotic figures (head arrow).
CRIM2017-7892980.001.jpg
PMC5439247_02_CRIM2017-7892980.001.jpg
fig1
The placenta corresponding to the first twin was 19 x 10 x 3 cm and the microscopic examination showed an intraplacental choriocarcinoma characterized by focal proliferation of both cytotrophoblast and syncytiotrophoblast in the intervillous space without involvement of the adjacent chorionic villi (Figures 1(d), 1(e), and 1(f)).