<unk>  was first discovered by Dr. Gunner Telium, a Danish pathologist, in 1959. The hypermethylation of the RUNX3 gene promoter and overexpression of GATA-4, a transcription factor has been associated with the development of<unk> .<unk>  is a rare type of malignant ovarian tumor that occurs in the second decade of life. On gross pathology, a solid gray-white with gelatinous, myxoid, or mucoid appearance, necrosis, cystic changes, and hemorrhage are characteristic findings of<unk> . On microscopic histopathological analysis, Schiller-Duval bodies is a characteristic finding of<unk> .<unk>  must be differentiated from other diseases that cause pelvic mass, such as Stein-Leventhal syndrome, and seminoma. In 2015, the incidence of<unk>  is<unk> imated to less than 1/100,000 case per year in U.S.<unk>  may be classified according to histology groups.The diagnosis of<unk>  is made based on the imaging (U/S and MRI) and alpha fetoprotein (AFP) tumor marker greater than 100 ng/ml.<unk>  have a bimodal distribution more commonly observed among young and adult population. The symptoms of<unk>  include the followings: abdominal distention, acute/sub acute abdominal pain.<unk>  is treated with surgery depending on the tumor marker and imaging as well as fertility desired.The medical therapy for<unk>  is chemotherapy such as bleomycin, etoposide, and cisplatin for 3 to 4 cycles for 21 days.
Endodermal sinus tumor
Endolymphatic sac tumor
Brown tumor
Ganglion cyst
Trichoblastoma
Germ cell tumor
Gonadoblastoma
Germinoma