All of the following are histological features of papillary carcinoma of thyroid, except:
Correct Answer: Amyloid deposits
Description: Histological features of Papillary thyroid carcinoma: Papillary carcinomas contain branching papillae having fibrovascular stalk covered by a single to multiple layers of cuboidal epithelial cells. Nuclei of papillary carcinoma cells contain finely dispersed chromatin, which impas an optically clear or empty appearance, giving rise to ground-glass appearance / Orphan Annie eye nuclei. Invaginations of cytoplasm often give appearance of intranuclear inclusions ("pseudo-inclusions") or intranuclear grooves. Concentrically calcified structures termed Psammoma bodies are often present within lesion, usually within cores of papillae Metastases to adjacent cervical lymph nodes occur in upto half of cases. Involvement of blood vessels is relatively uncommon, paicularly in smaller lesions. Amyloid deposits are found in medullary carcinoma of thyroid.
Category:
Pathology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now