This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pathology
[{'content': 'Orphan annie eye nuclei appearance is characteristic of- \nSelect and explain. \nA. Papillary carcinoma thyroid, B. Carcinoma pituitary, C. Paraganglioma, D. Meningioma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Orphan Annie eye nuclei is a feature of papillary carcinoma of thyroid. The nuclei of cells in papillary carcinoma thyroid has finely dispersed chromatin . Thus it is optically clear and shows ground glass or Orphan Annie eye nuclei. Ref: Robbins and cotrans 9e Pg 1095', 'role': 'assistant'}]