management of thyroid nodules Flashcards
are solitary thyroid nodules usually malignant or benign?
95% benign
what are benign solitary thyroid nodules usually?
- cysts
- colloid nodules
- benign follicular adenoma
- hyperplastic nodule
what is the most common cause for a malignant solitary thyroid nodule?
- papillary thyroid carcinoma (80%)
- follicular thyroid carcinoma (10%)
- medullary thyroid carcinoma (3%)
- lymphoma (<5%)
what are indications to the nodule being in the thyroid?
-if it moves on swallowing
if a solitary thyroid nodule is painful what may this suggest?
-pain is an uncommon feature and is usually cause by intra thyroidal bleed into a cyst
what investigations should be done if a solitary nodule in the thyroid is found?
- TSH levels
- USS FNA
what does Thy2 on FNA indicate?
benign
what does Thy2 on FNA indicate?
benign
what does Thy3 on FNA indicate?
its atypical
what does Thy4 on FNA indicate?
probably malignant
what does Thy5 on FNA indicate?
malignant
what does U2 on USS of a solitary thyroid nodule indicate?
benign
what does U2 on USS of a solitary thyroid nodule indicate?
benign
what does U2 on USS of a solitary thyroid nodule indicate?
benign
what does U3 on USS of a solitary thyroid nodule indicate?
atypical
what does U4 on USS of a solitary thyroid nodule indicate?
probably malignant
what does U5 on USS of a solitary thyroid nodule indicate?
malignant
what would treatment be if someone was a high risk group and had differentiated thyroid cancer? (DTC)
total thyroidectomy
consider radio-active iodine
what would treatment be if someone was a low risk group and had differentiated thyroid cancer? (DTC)
thyroid lobectomy
what age would be considered low/high risk?
low risk <50
high risk> 50
what tumour size would be considered low/high risk?
low<4 cms
high> 4cms
what is the TNM classification for a tumour size 2cm of less?
T1
what is the TNM classification for a tumour size >2 cm but 4 cm or less and limited to the thyroid?
T2
what is the TNM classification for a tumour size >2 cm but 4 cm or less and limited to the thyroid?
T2
