Accuracy of Neck U/S in Comparison with Frozen Section in Suspicious Solitary Thyroid Nodule
Keywords:
Ultrasound, Frozen Section, Solitary, Thyroid Nodule, SuspiciousAbstract
Background: Thyroid nodules are common, especially in women, with a rising incidence due to increased ultrasound use. Surgeons rely on ultrasound and frozen sections for diagnosing thyroid nodules. Aim: This study aimed to compare the accuracy of ultrasound and frozen sections in detecting malignant or suspicious solitary thyroid nodules and evaluate clinical pathology records. Materials and Methods: Medical records of individuals with suspicious solitary thyroid nodules at Al-Zahraa and Al-Azhar University Hospital, New Damietta, from April 2022 to April 2023 were prospectively analyzed. Nodules were categorized using the ACR TIRADS scoring system, and histological diagnoses were compared to ultrasound and frozen section findings. Sensitivity, specificity, and predictive values were assessed. Results: Among 50 participants (mean age 53.4 ± 8.0 years), anterior neck swelling (60%) was the most common symptom. Ultrasound indicated all patients had suspicious thyroid nodules. According to TIRADS, 58% were highly suspicious. Frozen sections identified malignant tumors in 70% and indeterminate nodules in 20%. Ultrasound had 89% sensitivity, while frozen sections had 67%. Specificity was 93% for ultrasound and 96.6% for frozen sections. Conclusion: Ultrasound is a reliable tool for diagnosing malignant solitary thyroid nodules in the absence of frozen sections, and it can support the diagnosis when used alongside frozen sections.