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Choriocarcinoma of the placenta during pregnancy is preceded by: hydatidiform mole (50% of cases) spontaneous abortion (20% of cases) ectopic pregnancy (2% of cases) normal term pregnancy (20–30% of cases) hyperemesis gravidarum; Rarely, choriocarcinoma occurs in primary locations other than the placenta; very rarely, it occurs in testicles.
The US appearance of yolk sac tumor is usually nonspecific and consists of inhomogeneous mass that may contain echogenic foci secondary to hemorrhage. Choriocarcinoma --- Choriocarcinoma is a highly malignant testicular tumor that usually develops in the 2nd and 3rd decades of life.
Teratocarcinoma refers to a germ cell tumor that is a mixture of teratoma with embryonal carcinoma, or with choriocarcinoma, or with both. [9] This kind of mixed germ cell tumor may be known simply as a teratoma with elements of embryonal carcinoma or choriocarcinoma, or simply by ignoring the teratoma component and referring only to its ...
Testicular cancer is highly treatable and usually curable. [5] Treatment options may include surgery, radiation therapy, chemotherapy, or stem cell transplantation. [2] Even in cases in which cancer has spread widely, chemotherapy offers a cure rate greater than 80%. [4] Globally testicular cancer affected about 686,000 people in 2015. [6]
Human chorionic gonadotropin can be used as a tumor marker, [29] as its β subunit is secreted by some cancers including seminoma, choriocarcinoma, teratoma with elements of choriocarcinoma, other germ cell tumors, hydatidiform mole, and islet cell tumor. For this reason, a positive result in males can be a test for testicular cancer. The ...
This tumour produces Leydig cells, which normally are found in the testicle and tend to secrete androgens. Sertoli–Leydig cell tumour. This tumour produces both Sertoli and Leydig cells. Although both cell types normally occur in the testicle, this tumour can occur in the ovary. [1] Gynandroblastoma. A very rare tumour producing both ovarian ...
Males have two testicles of similar size contained within the scrotum, which is an extension of the abdominal wall. [1] Scrotal asymmetry, in which one testicle extends farther down into the scrotum than the other, is common. This is because of the differences in the vasculature's anatomy. [1]
A seminoma is a germ cell tumor of the testicle or, more rarely, the mediastinum or other extra-gonadal locations. It is a malignant neoplasm and is one of the most treatable and curable cancers, with a survival rate above 95% if discovered in early stages. [3] Testicular seminoma originates in the germinal epithelium of the seminiferous ...