Difference between Sinus and Fistula

What is the difference between Sinus and Fistula?

Sinus as a noun is a pouch or cavity in any organ or tissue, especially the paranasal sinus. while Fistula as a noun is an abnormal connection or passageway between organs or vessels that normally do not connect.

Sinus

Part of speech: noun

Definition: A pouch or cavity in any organ or tissue, especially the paranasal sinus. An abnormal cavity or passage such as a fistula, caused by the destruction of tissue.

Fistula

Part of speech: noun

Definition: An abnormal connection or passageway between organs or vessels that normally do not connect.A tube, a pipe or a hole. (Rare except in derived adjective fistular.)

We hope you now know whether to use Sinus or Fistula in your sentence.

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