Do long-standing nodular goitres result in malignancies?

Area of Science:

• Endocrinology
• Surgical Oncology
• Pathology

Background:

• Nodular goitre is a common thyroid condition.
• Malignancy within nodular goitre requires careful evaluation.
• Thyroidectomy is a standard treatment for symptomatic nodular goitre.

Purpose of the Study:

• To determine the incidence of thyroid carcinoma in patients undergoing thyroidectomy for nodular goitre.
• To analyze the types of thyroid cancer found in multinodular goitre.
• To investigate risk factors, including sex and duration of swelling, associated with malignancy in multinodular goitre.

Main Methods:

• Retrospective review of 506 patients treated with thyroidectomy for histologically proven nodular goitre between 1966 and 1988.
• Statistical analysis including Student's t-test and Chi-squared test to compare patient groups.
• Calculation of odds ratios to assess the risk of malignancy in males.

Main Results:

• Thyroid carcinoma was found in 4.1% (21/506) of patients with nodular goitre.
• Papillary and follicular carcinomas were the most common types (11 and 9 cases, respectively).
• Patients with malignancy had a longer duration of swelling (9.11 years vs. 5.48 years).
• Males with multinodular goitre had a significantly higher odds ratio (2.82) of malignancy compared to females.

Conclusions:

• Malignancy is a significant concern in patients with nodular goitre requiring thyroidectomy.
• Males with multinodular goitre face an elevated risk of developing thyroid cancer.
• Longer symptom duration may be associated with concurrent thyroid malignancy.