They removed a clot from his brain.

他们从他的大脑里取出了血块。

《牛津词典》

Maloney's stroke resulted from a clot in his left carotid artery, the main supplier of blood to the brain's left hemisphere.

马宏升的中风导致身体左侧颈动脉血流阻塞，而颈动脉正是大脑左半球供血的主要通道。

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Strokes, which are usually caused when a clot forms and blocks the blood supply to the brain, kill around 200 people every day in the UK.

中风是由于出现血栓从而阻碍了大脑供血，在英国每天有近200人死于中风。

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Experts say the chance of a clot also increases if a person does not drink enough water.

VOA: special.2009.07.14

Doctors say anyone with pain, swelling or red skin on a leg during or after a long trip may have a blood clot.

VOA: special.2009.07.14

Three years ago, Mary Chapin Carpenter suffered a life-threatening blood clot in her lungs.

VOA: special.2010.05.28

Germany's Paion is developing a clot-buster originally found in the venom of vampire bats.

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Drugs like aspirin and clopidogrel (Plavix, NYSE:BMY) prevent platelets from clumping together into a clot.

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When he went to a hospital, doctors found he had a clot in a lung, she said.

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