# Outcomes of Differentiated Thyroid Cancer in Children and Adolescents at King Abdulaziz Medical City, Jeddah

## TL;DR

This study examines thyroid cancer in children and teens in Saudi Arabia, finding that most responded well to treatment and had a good prognosis.

## Contribution

The study provides insights into the clinical features and treatment outcomes of pediatric differentiated thyroid cancer in a Saudi Arabian population.

## Key findings

- Papillary thyroid carcinoma was the most common tumor type, with lymph node spread in 82% of cases.
- Most patients showed excellent responses to therapy, with a low mortality rate.
- Thyroid nodules were the primary symptom, highlighting the importance of physical exams for early detection.

## Abstract

Objective

Differentiated thyroid cancer (DTC) is rare in the pediatric population, with most data from the Western world. We aimed to describe the clinical presentation, treatment intervention, histopathological characteristics, complications, follow-up, and response to treatment in 17 patients with DTC at or below the age of 20 years.

Interventions

This was a retrospective cohort study at King Abdulaziz Medical City, Jeddah, Saudi Arabia. We included patients aged younger than 20 years with DTC. Total or near-total thyroidectomy was performed in 82% of the patients, central and/or lateral neck dissection in 35% of cases, and radioactive iodine (RAI) ablation in 76% of cases.

Results

The study included 17 patients (14 females), with a median age of 16 years at the time of diagnosis. Thyroid nodules were the main complaint in 88% of the patients. Thyroid ultrasonography was the main method for the initial evaluation. Papillary cancer was the most common type of tumor, and lymph node spread was found in 82% of the patients. Moreover, 40% of the patients exhibited excellent responses to therapy, with 35% showing indeterminate results. Only 23.5% of the patients developed hypocalcemia postoperatively.

Conclusions

Classical papillary thyroid carcinoma was the predominant histopathological type, and most patients showed excellent responses to therapy, followed by indeterminate in most of the cases. The most common presentation was a neck nodule, signifying the role of thorough physical neck examinations. Finally, recurrence occurred in a minority of patients. However, none of these patients died.