This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Female Genital Tract, Subject name: Pathology
Which one of the following is not true regarding choriocarcinoma? 
Select and explain. 
A. Aggressive malignancy, B. Raised HCG levels, C. Common below 20 years of age, D. Gonadal type is chemo sensitive
D: Gonadal type is chemo sensitive
Answer: D: Gonadal type is chemo sensitive 
Explanation: Ans. (d) Gonadal type is chemo sensitive(Ref: Robbins 9th/pg 1031)*In contrast to choriocarcinomas arising in placental tissue, those arising in the ovary are generally unresponsive to chemotherapy and are often fatal. Q