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B 超对肝癌的价值主要在于:诊断小肝癌,鉴别原发性和继发性肝癌,估计病变性质,预测癌肿生长速度。一、肝癌的B 超基本特征:1.癌块形状:可呈结节型、巨块型和弥漫型。结节型:肿块与肝实质之间界限清楚,可单个存在,也可呈多发性;(2)巨块型:肿块直径大于5cm,境界不清楚,但可辨认,常见于无包膜生长型瘤块;(3)弥漫型:瘤块不清楚,形态不整,粗糙的强弱的回声
The value of B-ultrasonography for liver cancer lies mainly in the diagnosis of small hepatocellular carcinoma, the identification of primary and secondary liver cancer, the estimation of the nature of the lesion, and the prediction of the growth rate of cancer. First, the basic characteristics of liver cancer B: 1. Cancer block shape: can be nodular type, block type and diffuse type. Nodular type: the boundary between the mass and the liver parenchyma is clear, and can be single or multiple; (2) Bulk type: The mass diameter is greater than 5cm, the boundary is unclear, but recognizable, common in non-enveloped growth type Tumor mass; (3) Diffuse: Unclear tumor mass, irregular shape, rough and strong echo