This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
Primary carcinoma of the uterus may be of following types except : 
Select and explain. 
A. Adenocarcinoma, B. Adenosquamous carcinoma, C. Clear cell type, D. Large cell keratinising type
D: Large cell keratinising type
Answer: D: Large cell keratinising type 
Explanation: WHO Histologic Classification of Endometrial Carcinoma 1. Endometroid adenocarcinoma Variations: Adenocarcinoma with Squamous differentiation Secretory adenocarcinoma Ciliated carcinoma Viloglandular 2. Serous 3. Clear cell carcinoma 4. Undifferentiated carcinoma 5. Mucinous carcinoma 6. Squamous cell carcinoma 7. Transitional cell carcinoma 8. Mixed cell type Reference: Textbook of Gynaecology; Sheila balakrishnan; 2nd edition; Pg no: 244