The thyroid gland

When should thyroxine replacement begin after total thyroidectomy?

Which proposed mechanism accounts for the high incidence of follicular carcinoma in endemic goitrous areas?

Which operation provides diagnosis and treatment for a follicular adenoma presenting as a solitary thyroid nodule?

Which primary malignancy most commonly gives rise to metastases involving the thyroid?

Which thyroid carcinoma category represents an intermediate state between classic differentiated and undifferentiated disease?

A patient with thyroid cancer has recurrent laryngeal nerve paralysis. What does this finding strongly suggest?

Malignant transformation of thyroid parafollicular C cells produces which tumour?

After initial clinical assessment of a thyroid swelling, which investigation is the next step?

A patient with a thyroid neoplasm has widespread nodal disease and suspected airway invasion. What additional imaging should be considered to define disease extent before surgery?

Which exposure is the most important identifiable aetiological factor for differentiated thyroid carcinoma, particularly papillary carcinoma?

A thyroid nodule is categorised as indeterminate on ultrasonography. Which investigation should follow?

A patient develops tingling around the mouth and in the fingers after total thyroidectomy. Which postoperative abnormality should be suspected?

What chiefly explains the rapidly increasing incidence of papillary thyroid carcinoma worldwide?

Which functional assessment should accompany wound inspection at clinic review after thyroid surgery?

Which thyroid malignancy may develop in autoimmune thyroiditis, with lymphocytic infiltration suggested as an aetiological factor?

Which cells predominate histologically in Hürthle cell tumours?

A patient has a rapidly growing, solid, fixed thyroid mass. Anaplastic carcinoma cannot be confidently distinguished from thyroid lymphoma or thyroiditis. Which diagnostic procedure may be required?

Why has elective lateral neck dissection been abandoned in papillary thyroid carcinoma when no nodal disease is detected preoperatively?

Why is accurate differentiation of anaplastic thyroid carcinoma from thyroid lymphoma or thyroiditis critical?

Why is the role of elective nodal surgery questioned in clinically node-negative papillary thyroid carcinoma despite frequent occult micrometastases?

Why do nodal metastases predict recurrence but not death in younger patients with differentiated thyroid carcinoma?

Which thyroid operation is described for high-risk differentiated thyroid carcinoma with nodal or distant metastases to eradicate thyroid disease and prepare for radioactive iodine?

A thyroid aspirate shows a follicular lesion without clinical evidence of metastases. What is normally required to distinguish follicular carcinoma from follicular adenoma?

A low-risk patient has a single focus of differentiated thyroid carcinoma confined to the thyroid. Which operation can be offered?

Thyroid carcinoma is diagnosed after a diagnostic lobectomy, and subsequent risk assessment classifies the patient as low risk. What approach should be considered?

In an older patient with differentiated thyroid carcinoma and a high-risk tumour, how high may the risk of death be at 5 years?

A patient with differentiated thyroid carcinoma has established metastatic disease in a neck compartment. What neck operation is recommended?

Compared with papillary thyroid carcinoma, which pattern characterizes follicular carcinoma?

Which size criterion defines papillary thyroid microcarcinoma?

A 45-year-old patient with differentiated thyroid carcinoma has distant metastases. Under the American Joint Committee on Cancer staging system described, what is the stage?

What is the stated effect of lymph node metastases on survival in younger patients with papillary thyroid carcinoma?

In papillary thyroid carcinoma without preoperatively detected nodal disease, which feature identifies a group considered most likely to benefit from elective central neck dissection?

Medullary thyroid carcinoma has established nodal metastases. What surgical approach is described?

A patient with differentiated thyroid cancer is considered at high risk after surgery. What is the intended biochemical goal of postoperative thyroxine therapy?

What hormonal condition is required to drive radioiodine effectively into thyroid cells?

A patient has persistently detectable thyroglobulin after thyroid cancer surgery, and serial measurements now show an increase. What is the next step described?

Staging shows medullary thyroid carcinoma confined to the thyroid. Which operation is recommended?

Which serum marker is valuable for follow-up of medullary thyroid carcinoma because it falls after resection and rises with recurrence?

Genetic screening in a family with medullary thyroid carcinoma identifies a relative with a highest-risk mutation associated with early-onset disease. When is total thyroidectomy recommended?

Anaplastic thyroid carcinoma appears confined to the neck and resectable on imaging. Which treatment approach is associated with a slightly better outcome in such patients?