Medusae play an important role in Marine ecosystem.

水母类是海洋生态系统中非常重要的一个类群。

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Petechiae, ecchymoses, "pinch purpura, " and caput medusae are some of the vascular lesions associated with malignancies.

瘀点、瘀斑、“挤压性紫癜”和脐周静脉曲张是与某些恶性肿瘤有关的血管性损害。

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Seen here is "caput medusae" which consists of dilated veins seen on the abdomen of a patient with cirrhosis of the liver.

如图所示，肝硬化患者腹部扩张的静脉侧支形成了“海蛇头”样表现。

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