Mesothelioma is a type of cancer that has become far more well known over recent years among medics and the general public,although there is still a long way to go with regards to educating people about this type of cancer. This form of cancer affects cells known as the mesothelial cells, which can be found located around major organs such as the heart, lungs, and abdominal organs. There are three main types of mesothelioma, and all of these can prove deadly. This is a cancer that is malignant more often than not, and has a number of characteristics that set it apart from other types of cancer.
间皮瘤通常指间皮组织的恶性肿瘤，尤指胸膜瘤和腹膜瘤A usually malignant tumor of mesothelial tissue,especially that of the pleura or peritoneum.  
  腹膜间皮瘤为原发于腹膜上皮和间皮组织的肿瘤。恶性间皮瘤(peritoneal malignant mesothelioma,PMM)常发生于40岁以上男性。脏层或壁层腹膜均可罹及；肿瘤可直接侵犯腹、盆腔脏器；50%～70%病人伴淋巴和(或)血行转移远处如肝、肾、肾上腺、肺、骨和淋巴结等。  
    本病临床表现缺乏特异性，可有腹痛、便秘、腹胀、体重减轻及其他肠梗阻表现。体检可发现腹水或腹块等。腹水为渗出液，部分为血性。B超和CT表现多样，典型者腹膜不规则增厚，大网膜粘连呈饼状，肠系膜呈薄纸样；CT也可显示增强的胰周大肿块，或腹腔内弥漫性实质性大肿块，并侵犯肠管和肠系膜；或腹膜结节，或呈囊性包块；多伴有不同程度腹水。超声或CT引导下穿刺活检有一定价值。腹腔镜检查是诊断PMM的简单而有效的方法。

本来是出于对高价关键字的好奇才找了一下类似的资料，不想看了一下发现果然很严重，mesothelioma对接触石棉的人具有高风险性，hope everyone good hearth~