saddleback pulmonary embolism: when one or more pulmonary arteries in your lungs become blocked.
in his case...blood clots in the lungs.
the dark colored spots in the photo...his blood clots....extending from one side to the other. blocking off his pulmonary arteries and compromising his heart.
physicians are amazing....they broke up the clots.
bodies are amazing...they absorb the clots gradually.
{drawing courtesy of the radiologist who performed the procedure}