5 doctors weighed in:

What does it mean if the doctors say they don't know where a pulmonary embolism came from?

5 doctors weighed in
Dr. Carlo Hatem
Internal Medicine - Pulmonary Critical Care
2 doctors agree

In brief: What it says

A blod clot in the lung normally did not form there, it got there after traveling from its point of origin.
90% of these clots start in the veins of the legs, the rest come from the arms, or the pelvis. Alternatively, it might be a clumsy way of saying that they don't know why it happened.

In brief: What it says

A blod clot in the lung normally did not form there, it got there after traveling from its point of origin.
90% of these clots start in the veins of the legs, the rest come from the arms, or the pelvis. Alternatively, it might be a clumsy way of saying that they don't know why it happened.
Dr. Carlo Hatem
Dr. Carlo Hatem
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Dr. Michael Zevitz
Internal Medicine - Cardiology
1 doctor agrees

In brief: Origin unknown

The origin of pulmonary embolism is commonly from the deep veins in the legs, but they can occur from other locations as well.
Unless you see a deep vein blockage on a venous ultrasound, the origin of the pulmonary embolism may never be known.

In brief: Origin unknown

The origin of pulmonary embolism is commonly from the deep veins in the legs, but they can occur from other locations as well.
Unless you see a deep vein blockage on a venous ultrasound, the origin of the pulmonary embolism may never be known.
Dr. Michael Zevitz
Dr. Michael Zevitz
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Dr. Aaron Milstone
Board Certified, Internal Medicine - Pulmonology
23 years in practice
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