papillary serous carcinoma of the endometrium
Papillary serous carcinoma of the endometrium is an uncommon histological subtype of endometrial carcinoma accounting for only 5-10% of all such tumors . It is considered type II endometrial adenocarcinoma and has a clinically aggressive form with an early extension of the tumor via Fallopian tubes into the peritoneum and peritoneal seeding which accounts for its poorer prognosis compared to the other adenocarcinomas of the uterus. This is thought to closely resemble ovarian papillary serous carcinoma .
Like is ovarian counterpart papillary projections characterize it and frequently contains psammoma bodies (may be found in ~1/3 of cases) that may calcify .
This subtype may increase serum CA-125 levels .