Why is the pain of Pulmonary embolism pleuritic?

[ibarne242]

it was my understanding that, for pleural pain to develop, there must be some involvement of the parietal pleura. I'm having trouble appreciating how a pulmonary embolism could cause this. Thanks a ton.

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[drhop]

it was my understanding that, for pleural pain to develop, there must be some involvement of the parietal pleura. I'm having trouble appreciating how a pulmonary embolism could cause this. Thanks a ton.

PE leading a pleural based infarct , also referred as Hampton s Hump, is essentially visceral based. Leads to local inflammation involving the parietal pleura....leading pain .
This is also ONE of the essential reasons for PE presenting with Fever, when te infarct is large and may get infected.
Good Question!

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[gamerEMdoc]

Not all PE pain is pleuritic. Generally its the peripheral (smaller) PEs that give you pleuritic pain because they are causing peripheral infarction. Giant saddle emboli often mimic cardiac pain or are pain free and just give profound SOB.