Hi could i have an explanation of pulmonary embolus (thrombolysed)?

Blood clot: A pulmonary embolus is a blood clot that usually originates from the veins in the legs and travels through the veins to the heart to only get stuck in one of the veins in the lungs. Big clots in the more proximal pulmonary veins can be fatal.

Clot in lungs: Often the body will dissolve these clots when proper blood thinning therapy is in effect.