Journal of Surgical Ultrasound

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Fig. 1.

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Fig. 1. Categorization of ultrasound results with relationship between tumor and thyroid capsule. (A) Group 1: Capsular abutment; which is no tissue between capsule and tumor (B) Group 2: Capsular protrusion; it means loss of perithyroidal echogenic rim between capsule and thyroid tumor (C) Group 3: Tumor is well contained inside thyroid capsule without any abutment or protrusion with capsule.
J Surg Ultrasound 2020;7:15-20 https://doi.org/10.46268/jsu.2020.7.2.15
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