Man coughs blood in the shape of his bronchial tree



This is not for the faint of heart..

Doctors at UC San Francisco Medical Center see a lot of things, but even they were stunned by this.

They were treating a 36-year-old man with end-stage heart failure when he began coughing so violently, that he coughed up a 6-inch-wide blood clot from his lungs in the near-perfect shape of his right bronchial tree.

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