<prompt> Malignant germ cell tumours of ovary includes all of the following except:a Choriocarcinoma b Arrhenoblastomac Brenners tumord Serous cystadenomae Teratomaabcacdacbcd  <response>: Germ cell Tumors of ovary:Mnemonic: YES PCTY - Yolk sac Tumor Endodermal sinus TmE - Embroyonal carcinomaS - Seminoma DysgerminomaP - PolyembryomaC - ChoriocarcinomaT - Teratoma DermoidIn contrast to slow growing epithelial ovarian tumors, germ cell malignancies grow rapidly and are characterised by subacute pelvic pain. Most common germ cell Tumor Mature teratoma or Dermoid cyst Benign in nature. Most common malignant GCT Dysgerminoma. Second most common malignant GCT Endodermal sinus Tumor. Yolk Sac tumor Most common benign Tumor of ovary Dermoid cyst 