Tiroides Pathology PDF

# TIROIDES - Organs where metastasis occurs in Thyroid Cancer: - Lymphatic dissemination 20-90% - Lung 49%, bone 25%, CNS and soft tissue 10% - What do parafollicular cells secrete? - Calcitonin - Follicular cells of the thyroid gland secrete thyroid hormones triiodothyronine (...

# TIROIDES - Organs where metastasis occurs in Thyroid Cancer: - Lymphatic dissemination 20-90% - Lung 49%, bone 25%, CNS and soft tissue 10% - What do parafollicular cells secrete? - Calcitonin - Follicular cells of the thyroid gland secrete thyroid hormones triiodothyronine (T3) and tetraiodothyronine (thyroxine, T4) - Mention the 3 most important pathologies of differentiated thyroid carcinoma? - Papillary, follicular, medullary carcinoma and Hürthle cells. - Are these risk factors for papillary thyroid cancer? - Woman, received radiotherapy, decreased iodine - A 45-year-old patient with a rapidly growing thyroid nodule, what percentage of thyroid nodules are malignant? - 5% - Name the nerve that is located in the tracheoesophageal groove located in the right and left thyroid lobes. - Recurrent laryngeal nerve - When suspected, a US neck shows a TIRADS 5, what does that mean? - Highly suspicious > 80% - Anaplastic histology is reported in the biopsy, what is the average survival of these patients? - 6 months - Following a thyroidectomy with a histopathological report of papillary thyroid cancer ≥ 4 cm, extrathyroidal extension and elevated thyroglobulin, which would be the best adjuvant method? - Radioactive iodine - Factors that are poor prognostic indicators for thyroid cancer, except: - Female - What are the most common sites of distant metastasis in papillary and follicular thyroid cancer? - Lung, bone, CNS and soft tissues