This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ovarian Tumors and Vulvar cancer, Subject name: Gynaecology & Obstetrics
Which of the following Ovarian neoplasm shows Rokitansky's protuberance: 
Select and explain. 
A. Androblastoma, B. Mucinous cyst adenoma, C. Dermoid cyst, D. Papillary serous cyst adenoma
C: Dermoid cyst
Answer: C: Dermoid cyst 
Explanation: Rokitansky protuberance is seen in both X-ray and USG on Dermoid cyst as Radiopaque and Hyperechoic respectively. Site where the most varied tissue types are found Common location of Malignant transformation Rokitansky protuberance is a rounded mural nodule that measures 1 to 4 cm, and creates an acute angle with the cyst wall