Thrombosis of the pulmonary artery
Wellcome Collection

Thrombosis of the pulmonary artery

Mark, Leonard Portal

CC0 — Public Domain
Wellcome Collection

Watercolour drawing of a heart, the right side of which has been laid open to show a long cylindrical recent blood-clot lying in the right ventricle and extending up into the four main branches of the pulmonary artery. From a man, aged 41 years, who died of pneumonia.

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