THYROID IMAGING AND STUDIES

Question 1

THE WORKHOUSE INVESTIGATION for surgeons IN THYROID DISEASE

Answer 1

USG

Question 2

IMAGING MODALITY OF CHOICE

Answer 2

CT
to visualise and report retrosternal extensions and mediastinal lymph nodes
determines the extend of airway invasion

Question 3

why MRI in thyroid cancer

Answer 3

determines the presence of prevertebral fascia invasion

Question 4

radioiodine scan indication

Answer 4

in a toxic patient with thyroid nodularity (to see what part is toxic)

no value in predicting malignancy (since 80% of cold nodules are benign and 5 % warm are malignant)

the metastatic thyroid tissue cannot compete with normal thyroid tissue in iodine uptake

Question 5

investigation of choice in discrete thyroid swelling

Answer 5

FNAC

Question 6

FNAC cytology reporting

Answer 6

Thy 1 - non diagnostic
Thy 1c - non diagnostic cystic
Thy 2 - non neoplastic
Thy 3 - follicular
Thy 4 - suspicious of malignancy
Thy 5 - malignant

Question 7

goitre

Answer 7

Latin guttur - the throat