Papillary carcinoma thyroid -etiology, pathology, clinical features, treatment

PAPILLARY CARCINOMA THYROID Thyroid gland is the only endocrine gland where in malignant tumor spread by all possible routes: Local Lymphatic Blood Thyroid gland is the only endocrine gland where in malignant tumors are usually non -functional ETIOLOGY: Accidental radiation to neck /Hodgkin lymphoma result in papillary carcinoma of thyroid It can be complication of hashimoto thyroiditis Occur often in gardner syndrome ,Cowden syndrome patient associated with mutation :chromosomal translocation involving RET PROTO ONCOGENE ,Chromosome (10q11) PATHOLOGY: Its made up of colloid like filled follicles calcific lesion are found which are called PSAMOMA BODIES Follicular variant of papillary cancer : LINDSAY TUMOUR Mixed lesion Tall cell papillary cancer :Aggressive, rapidly growing tumor Calcification Cystic changes Cuboidal pale cells Crowded nuclei Cytoplasmic inclusion -intranuclear Cartoon character -ORPHANANNIE Calcified deposits: PSAMMOMA...