Article from: December 7, 2018
Man coughs up blood clot in perfect shape of bronchial tree
"… he coughed up a 6-inch-wide blood clot from his lungs in the near-perfect shape of his right bronchial tree"
https://abc7news.com/ucsf-medical-rare-blood-clot-lung-man-dies-after-coughing-up/4855176/