This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Carcinosarcoma may arise in - 
Select and explain. 
A. Uterus, B. Cervix, C. Vagina, D. Ovary
A: Uterus
Answer: A: Uterus 
Explanation: Carcinosarcoma of uterus

Carcinosarcomas consist of endometrial adenocarcinoma in which malignant sarcomatous (stromal) differentiation takes place.
Carcinosarcoma has two components : -


Adenocarcinoma → Therefore called carcinosarcoma
Sarcomatous component → Therefore called carcinosarcoma


Sarcomatous component may be striated muscle cells, cartilage, adipose tissue and bone.