Thyroid Pathology Flashcards
Best diagnostic procedure for a COLD thyroid nodule
Fine needle aspiration and cytology
Cytology findings for Lymphocytic/Hashimoto’s Thyroiditis
Hurthle (Epithelial) cells
Mixture of large and small lymphocytes
Cytology findings for Thyroid Papillary Carcinoma
Cohesive papillary groups
Calcifications or Psammoma bodies
Nuclear grooves
Intranuclear inclusions
Benign thyroid neoplasm; COMPLETELY encapsulated nodule composed of Follicular cells; excision required for definite diagnosis
Follicular Adenoma
Histologic findings for Follicular Adenoma
Encapsulated
Follicular or Hurthle cells
*NO invasion of capsule or blood vessels, unlike Follicular Thyroid CARCINOMA
Histologic findings for Papillary Thyroid Carcinoma
Crowded cells
Irregular nuclear contour
Disperse chromatin
Psammoma bodies
Histologic findings for Follicular Thyroid Carcinoma
Follicular or Hurthle cells
INVADES capsule and blood vessels*
*difference from Follicular Adenoma
Histologic findings for Medullary Thyroid Carcinoma
Neuroendocrine appearance
Round/oval cells
Amyloid