Paediatrics: Solitary thyroid nodule

Solitary thyroid nodule

Solitary nodules of the thyroid are uncommon. Approximately 15% may be associated with underlying thyroid cancer. Careful evaluation is required. Potential causes of a solitary thyroid nodule include:

·benign adenoma;

·thyroglossal cyst;

·ectopic, normal thyroid tissue;

·single median thyroid gland;

·thyroid cyst or abscess;

·thyroid carcinoma.

Investigation should include radioisotope (^99mTc) scan. Cold nodules or nodules that feel hard on palpation, or are rapidly growing should raise suspicion of thyroid cancer. Biopsy and surgical excision are indicated.