Analysis demonstrates improved diagnosis of malignant tumors in gallbladder through endoscopic ultrasonography, indicating key indicators for subserosa invasion.
The reader noted that a deep hypoechoic area is the main echoic indication of subserosa (SS) invasion of malignant gallbladder tumors. In this study, we evaluated an irregular lateral high-echoic layer (LHEL) as the main indication of SS invasion. If the presence of a deep hypoechoic area combined with an irregular LHEL is considered, the diagnosis of SS invasion may be improved.
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Sugimoto et al. (2026) studied this question.
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