Case report: Hypoechoic area as an ultrasound finding suggesting subserosal invasion in polypoid carcinoma of the gall bladder. gall bladder carcinoma invading the shallow subserosa with a thickened outermost hyperechoic layer but a hypoechoic area in the deeper part of the tumour. ... T Fujimoto...
The area under the receiver operating characteristic curve was 0.97 for signal intensity variation. CONCLUSION: Hyperechogenicity in certain liver nodules is caused by fat. Chemical shift MR imaging allows accurate differentiation between these and other hyperechoic lesions with no fat component.Martin J...