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초록
Zenker's diverticulum, a pulsion diverticulum of the hypopharynx, is a rare lesion that commonly occurs in left side of hypopharynx. The incidence of esophageal diverticula is much lower than that of focal lesions or nodules of thyroid. In an ultrasonography, the outpouching just like a focal thyroid lesion, may present as an oval or circular structure. The food remnants or gas bubbles present in the diverticulum may mimic microcalcifications presented in papillary thyroid carcinoma. We reported a case of right side Zenker's diverticulum mimicking a thyroid cancer in thyroid ultrasonography.
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Fig. 1.
The axial (A) and longitudinal (B) US scan of right thyroid lobe shows 17×12×18 mm sized isoechoic nodule with micro-and macrocalcification. The arrow shows communication of nodule and esophagus (C).
Fig. 2.
(A, B) This esophago-gastroscopy shows an outpouching lesion of upper esophagus. E: esophagus, Z: Zenker’ s diverticulum
Fig. 3.
The esophagography confirms a barium filled sac projecting from the upper esophagus, posterior aspects.(A) Barium filling view, (B) mucosal relief view. Arrow: Zenker's diverticulum.
Table 1.
Literature review of ultrasonography of esophageal diverticulum
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