Thyroid nodules Flashcards
What are thyroid nodules?
Thyroid nodules may be noted by the patient, during a clinical examination or as a finding following imaging.
What is the primary aim of investigating thyroid nodules?
The primary aim is to exclude thyroid cancer, which accounts for around 5% of all nodules depending on the patient demographic.
What are some benign causes of thyroid nodules?
Benign causes include multinodular goitre, thyroid adenoma, Hashimoto’s thyroiditis, and cysts (colloid, simple, or hemorrhagic).
What are some malignant causes of thyroid nodules?
Malignant causes include papillary carcinoma (most common), follicular carcinoma, medullary carcinoma, anaplastic carcinoma, and lymphoma.
What should be checked in all patients with thyroid nodules?
Thyroid function should be checked in all patients.
What is the first-line imaging of choice for investigating thyroid nodules?
Ultrasonography is the first-line imaging of choice, which may help determine if the nodule has features suspicious of malignancy.
causes of thyroid nodules