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Malignancy Risk of Thyroid Nodules with Minimal Cystic Changes: a Multicenter Retrospective Study by Yoo Jin Lee; Jee Young Kim; Dong Gyu Na; Ji-hoon Kim; Minkyung Oh; Dae Bong Kim; Ra Gyoung Yoon; Seul Kee Kim; Seongjun Bak is a Medicine article available to read on EtoBox.
What is Malignancy Risk of Thyroid Nodules with Minimal Cystic Changes: a Multicenter Retrospective Study about?
## Purpose The aim of this multicenter study was to investigate the malignancy risk of minimally cystic thyroid nodules (MCTNs) using cyto-histopathologic diagnoses as the reference standard. ## Methods From June 2015 to September 2015, 5,601 thyroid nodules (≥1 cm) from 4,989 consecutive patients who underwent thyroid ultrasonography (US) at 26 institutions were retrospectively analyzed. Each thyroid nodule was categorized according to its cystic proportion: purely solid, minimally cystic (≤10%), and partially cystic (>10%). The malignancy risk of MCTNs was compared with those of purely solid nodules and partially cystic thyroid nodules (PCTNs). The malignancy risk of MCTNs was assessed according to echogenicity and the presence of suspicious US features. ## Results The prevalence of MCTNs was 22.5%. The overall malignancy risk of MCTNs was 8.8%, which was significantly lower than that of purely solid nodules (29.5%) (P 0.05). MCTNs were associated with a higher risk of malignancy in hypoechoic nodules than in isohyperechoic nodules and in nodules with suspicious US features than in those without suspicious US features (all P<0.001). ## Conclusion The malignancy risk of MCTNs was
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- Author
- Yoo Jin Lee; Jee Young Kim; Dong Gyu Na; Ji-hoon Kim; Minkyung Oh; Dae Bong Kim; Ra Gyoung Yoon; Seul Kee Kim; Seongjun Bak
- Publisher
- Korean Society of Ultrasound in Medicine
- Published
- 2022
- Language
- EN
- Field
- Medicine (Health Sciences)