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Paratracheal air cysts: sonographic findings in two cases
Young-Jin Kim1, Eun-Kyung Kim, Jinna Kim
1Department of Diagnostic Radiology, Research Institute of Radiological Science, Seodaemun-gu, Seoul, Korea.
Korean Journal of Radiology
|July 8, 2003
Abstract:
We report two cases of paratracheal air cyst discovered incidentally at neck ultrasonography and confirmed at CT. The cysts were located at the inferoposterior aspect of the right lobe of the thyroid. Ultrasonography revealed an ill-defined hypoechoic mass containing hyperechoic foci which mimicked calcifications. Neck CT confirmed the presence of an ill-defined air pocket which communicated with the trachea through a slit.