*Thyroid Cancer Genetics and Features* 1. *Papillary Carcinoma* - *Genetic Mutation*: BRAF gene - *Specific Nuclear Features*: "Orphan Annie eye nuclei" (clear nuclei with condensation of chromatin to the nuclear membrane) 2. *Follicular Carcinoma* - *Genetic Mutation*: RAS gene 3. *Medullary Carcinoma* - *Genetic Mutations*: RET, TEN - *Associated Conditions*: Multiple Endocrine Neoplasia (MEN) - *Tumor Marker*: Calcitonin ⭐