Journal List > Int J Thyroidol > v.11(1) > 1095054

Int J Thyroidol. 2018 May;11(1):56-59. Korean.
Published online May 31, 2018.
Copyright © 2018. the Korean Thyroid Association
A Case of Zenker's Diverticulum Mimicking a Right Side Thyroid Nodule
Chang Won Choi,1 and Hwa Young Ahn2
1Air Defense & Control Command, ROKAF, Seoul, Korea.
2Division of Endocrinology, Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.

Correspondence: Hwa Young Ahn, MD, PhD, Division of Endocrinology, Department of Internal Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 06973, Korea. Tel: 82-2-6299-3152, Fax: 82-2-6299-2017, Email:
Received January 09, 2018; Revised February 08, 2018; Accepted February 14, 2018.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


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.

Keywords: Thyroid nodule; Zenker diverticulum


Fig. 1
The axial (A) and longitudinal (B) US scan of right thyroid lobe shows 17×12×18 mm sized isoechoic nodule with microand macrocalcification. The arrow shows communication of nodule and esophagus (C).
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Fig. 2
(A, B) This esophagogastroscopy shows an outpouching lesion of upper esophagus. E: esophagus, Z: Zenker's diverticulum
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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.
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Table 1
Literature review of ultrasonography of esophageal diverticulum
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