Revisiting Rupture of Benign Thyroid Nodules after Radiofrequency Ablation: Various Types and Imaging Features
Endocrinology and Metabolism 2019³â 34±Ç 4È£ p.415 ~ p.421
Á¤»õ·Ò(Chung Sae-Rom) - University of Ulsan College of Medicine Asan Medical Center Department of Radiology
¹éÁ¤È¯(Baek Jung-Hwan) - University of Ulsan College of Medicine Asan Medical Center Department of Radiology
¼ºÁø¿ë(Sung Jin-Yong) - Daerim St. Mary¡¯s Hospital Thyroid Center Department of Radiology
·ùÁöÈ(Ryu Ji-Hwa) - Inje University College of Medicine Haeundae Paik Hospital Department of Radiology
Á¤¼Ò·É(Jung So-Lyung) - Catholic University College of Medicine Seoul St. Mary¡¯s Hospital Department of Radiology
Abstract
Background: To evaluate the imaging features, clinical manifestations, and prognosis of patients with thyroid nodule rupture after radiofrequency ablation (RFA).
Methods: The records of 12 patients who experienced thyroid nodule rupture after RFA at four Korean thyroid centers between March 2010 and July 2017 were retrospectively reviewed. Clinical data evaluated included baseline patient characteristics, treatment methods, initial presenting symptoms, imaging features, treatment, and prognosis.
Results: The most common symptoms of post-RFA nodule rupture were sudden neck bulging and pain. Based on imaging features, the localization of nodule rupture was classified into three types: anterior, posterolateral, and medial types. The anterior type is the most often, followed by posterolateral and medial type. Eight patients recovered completely after conservative treatment. Four patients who did not improve with conservative management required invasive procedures, including incision and drainage or aspiration.
Conclusion: Thyroid nodule rupture after RFA can be classified into three types based on its localization: anterior, posterolateral, and medial types. Because majority of thyroid nodule ruptures after RFA can be managed conservatively, familiarity with these imaging features is essential in avoiding unnecessary imaging workup or invasive procedures.
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Thyroid nodule, Ultrasonography, Radiofrequency ablation, Complication, Safety
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Thyroid nodule rupture after RFA can be classified into three types based on its localization: anterior, posterolateral, and medial types.