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. 2014 Jul 11;29(7):1018–1020. doi: 10.3346/jkms.2014.29.7.1018

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© 2014 The Korean Academy of Medical Sciences.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1 — Ultrasonography of the left testis. (A) A 0.4 × 0.5 × 0.4 cm sized poorly defined, heterogeneous mass with increased echogenicity. (B) Hypoechoic ring identified around the mass forming a "tubule-in-a-tubule" appearance.