Malignant tumors DMS 212

Epithelial

Serous cystadenocarcinoma MALIGNANT

Cystic masses with multiple thick separations and possible solid papillary projections from the walls

Post menopausal occasionally bilateral

Ovarian cancer is typically found with ascites

Epithelial

Muscinous cystadenocarinoma MALIGNANT

large, multi loculated cystic masses with papillary projections and thick echogenic material

Pseudomyxoma peritonei often found with mucinous rather than serous

Epithelial

Endometriod Tumor: MALIGNANT

Undifferentiated adenocarcinoma

Associated with endometriosis

Cystic masses containing papillary projections called mural nodules

Epithelial

Clear Cell Tumor (CCC): MALIGNANT

Predominantly cystic complex mass

Usually occurs after age of 50

Considered to be variant of endometrioid tumor & associated with endometriosis

Epithelial

Transitional Cell Tumor (Brenner Tumor) - USUALLY BENIGN

Hypoechoic solid masses with possible calcifications in the outer wall; sometimes seen concurrently with separate cystic mass

Germ Cell

Cystic Teratoma - BENIGN

Germ cell

Dysgerminoma

Malignant but higher cure rate due to sensitivity to radiation

May be cause of primary amenorrhea

Solid homogenous hyperechoic mass with irregular borders

Color Doppler shows septa with arterial flow

Germ Cell

Yolk sac tumor - poor prognosis & MALIGNANT

Found in females less than 20 years old

Increase in alpha feta-protein (AFP)

Predominantly solid with areas of necrosis (can measure up to 30 cm)