When is surgery required for a thyroid lump?

Thyroid lumps, also known as thyroid nodules, are common and often benign. However, in some cases, surgery may be necessary to remove them. The decision to operate depends on several factors, including the size, nature, and potential risk of malignancy.

When is surgery required?

1. Cancer, or suspicion of cancer

• If a biopsy (FNAC – fine needle aspiration cytology) shows cancer or is suspicious for cancer, surgery is usually recommended.
• Common types of thyroid cancer include papillary, follicular, and medullary thyroid carcinoma.

2. Large size causing symptoms

• If the lump is large (typically >4 cm) and causing:
  • Difficulty swallowing
  • Breathing problems
  • A visible swelling or cosmetic concern

Surgery may be advised even if it’s benign.

 

3. Hyperfunctioning (toxic) nodules

• Some nodules produce excess thyroid hormone (hyperthyroidism) – called toxic adenomas or toxic multinodular goitre.
• If medication or radioiodine isn’t effective or suitable, surgery is an option.

4. Indeterminate or inconclusive biopsy

• If repeated FNACs give inconclusive or indeterminate results (e.g., follicular neoplasm), surgery may be advised to remove and examine the nodule more thoroughly.

5. Goitre extending into chest (Substernal/Retrosternal goitre)

• Large goitres that extend into the chest and cause pressure symptoms often need to be removed.

What are the different types of surgery?

• Lobectomy: Removing one lobe of the thyroid (used if the lump is confined to one side).
• Total thyroidectomy: Removing the entire thyroid (often done for cancer or multiple nodules).

What does thyroid surgery involve?

There are different types of thyroid surgery, depending on the condition:

• Lobectomy/hemithyroidectomy – Removal of one lobe of the thyroid if only one side is affected.
• Total thyroidectomy – Removal of the entire thyroid gland, typically required for cancer or severe thyroid disease.

What is the recovery process like?

Recovery after thyroid surgery varies depending on the procedure performed:

• Most patients stay in hospital for one night.
• Mild discomfort and a sore throat are common but manageable with pain relief.
• Normal activities can usually be resumed within one to two weeks.
• In cases where the entire thyroid is removed, lifelong thyroid hormone replacement therapy is necessary.

Important things to remember about thyroid lumps
 

• Not all thyroid lumps need surgery.
• Many benign nodules can be monitored with ultrasound and thyroid function tests.
• Always follow the advice of an endocrinologist and/or thyroid surgeon who will decide based on:
  • Size
  • Symptoms
  • Biopsy results
  • Hormone levels
  • Patient preference