This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
Spontaneously regressing tumours are 
Select and explain. 
A. Malignant melanoma, B. Neuroblastoma, C. Ewing's sarcoma, D. Wilm's tumour
A: Malignant melanoma
Answer: A: Malignant melanoma 
Explanation: Tumors with spontaneous regression Neuroblastoma Choriocarcinoma Renal cell carcinoma Malignant melanoma Retinoblastoma Ref : Robbins 9th edition Pgno : 477, 1041, 955, 1339, 1149