venous embolism

Surgical or catheter embolectomy is normally performed in patients with pulmonary embolism (formed from venous embolisms).

However, pulmonary embolism is generally classified as a form of venous embolism, because the embolus forms in veins.

Fragments from injection of pills are known to clog the small blood vessels of the lungs, brain and elsewhere, potentially causing pulmonary embolism, stroke, or venous embolism.