This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid Gland, Subject name: Surgery
Orphan-Annie-eyed nuclei are seen in: 
Select and explain. 
A. Papillary carcinoma, B. Follicular carcinoma, C. Anaplastic carcinoma, D. Medullary carcinoma
A: Papillary carcinoma
Answer: A: Papillary carcinoma 
Explanation: (Papillary carcinoma): Ref: 798-LB (793-B &L 25th)* Histologically the papillary carcinoma shows papillary projections and characteristic pale, empty nuclei (Orphan-Annie - eyed nuclei)* Papillary carcinoma is the most common of the thyroid neoplasms and is usually associated with an excellent prognosis* The association of irradiation and thyroid cancer has been known usually papillary carcinoma* Psammoma bodies is diagnostic of papillary carcinoma