<s>[INST] context: "Most patients are euthyroid and present with a slow-growing painless mass in the neck Dysphagia, dyspnea, & dysphonia are usually associated with locally advanced invasive disease. Lymph node metastases are common, especially in children and young adults, and may be the presenting complaint. The so called 'lateral aberrant thyroid', almost always denotes a cervical lymph node that has been invaded by metastatic cancer. Diagnosis is established by FNAB of the thyroid mass or lymph node" - Schwartz Surgery
More about Papillary Ca thyriod

PTC is the most common type of thyroid carcinoma
More common in females with female : male ratio of 2 : 1.
Mean age at presentation is 30 to 40 years
Most common presentation is a painless nodule in neck or a cervical lymph node (lateral aberrant thyroid) Spread to the lymph nodes is common but blood borne metastasis is unusual.
Multiple foci may occur in the same lobe as the primary tumor or, less commonly in both lobes (this may be due to lymphatic spread in the rich intrathyroidal lymph plexus, or due to multicentric growth).
Diagnosis is confirmed by FNA biopsy of the thyroid mass or lymph node. [/INST] question: Papillary ca thyroida) Most common thyroid cancerb) Psammoma bodies seenc) Encapsulatedd) Blood borne metastasis is common | options: A: ab B: bc C: acd D: abc | answer: D </s>