Percutaneous Ethanol Injection for Benign Cystic Thyroid Nodules: Is Aspiration of Ethanol-Mixed Fluid Advantageous?
Dong Wook Kima,
Myung Ho Rhoa,
Hak Jin Kimb,
Jae Su Kwona,
Young Sun Sunga and
Sang Wook Leea
a From the Department of Radiology, Masan Samsung Hospital, Sungkyunkwan University School of Medicine, Masan, South Korea
b Department of Radiology, Pusan National University Hospital, South Korea
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FIG 1. 16-year-old boy with a purely cystic thyroid nodule (group A).
A, Ultrasonogram obtained before ethanol sclerotherapy shows a huge hemorrhagic thyroid nodule.
B, Ultrasonogram obtained 2 months after ethanol sclerotherapy reveals the complete disappearance of the cystic portion of the thyroid nodule and replacement by echogenic material.
C, Ultrasonogram obtained 9 months after ethanol sclerotherapy shows a decrease in the size of the postsclerotic thyroid nodule.
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FIG 2. 46-year-old woman with a cystic thyroid nodule (group B).
A, Ultrasonogram obtained before ethanol sclerotherapy shows a nearly pure thyroid cyst with an intracystic blood clot (arrow).
B, Ultrasonogram obtained after aspiration of infused ethanol shows the disappearance of the cystic portion and incomplete collapse of the cystic nodule due to the blood clot (arrow).
C, Ultrasonogram obtained 24 months after ethanol sclerotherapy shows the markedly decreased size of the thyroid nodule (arrow) without the cystic portion.
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