<prompt> A left side ovarian tumor with HCG 4 IUL, Normal AFP, LDH raised. Which of the following is the most likely diagnosisChoriocarcinoma.Dysgerminoma.Embryonal cell tumor.Malignant Teratoma.  <response>: Germinomas pure germ cell tumors, which are tumors that respond well to treatment. Germinomas usually can be cured using chemotherapy andor radiation therapy. Ninety percent of germ cell tumors are gonadal, which means they begin in the reproductive cells of the testes testicular tumors or ovaries ovarian tumors. Germ cell tumors that appear in other pas of the body - including the abdomen, chest, neck, head and brain the areas where the cells migrate within a developing embryo - are called extragonadal germ cell tumors. The most common types of malignant germ cell tumors are dysgerminomas immature teratomasendodermal sinus tumors. Dysgerminoma 30 to 40 of all ovarian cancers of germ cell origin occur in young women 20 to 30 of ovarian malignancies associated with pregnancy are dysgerminomas. Tumor markers: LDH, PLAP Immature Teratomas elements that resemble tissues derived from the embryo second most common germ cell malignancy and accounts for 10 to 20 of all ovarian malignancies seen in women younger than 20 years 