Fistula

The Latin word fistula (UK /ˈfɪstjʊlə/ or US /ˈfɪstʃələ/ or /ˈfɪʃtʃələ/, plural fistulas /-ləz/ or fistulae /-li/ or /-laɪ/) literally means tube or pipe.

In medicine, a fistula is an abnormal connection between two hollow spaces (technically, two epithelialized surfaces), such as blood vessels, intestines, or other hollow organs. Fistulas are usually caused by injury or surgery, but they can also result from an infection or inflammation. Fistulas are generally a disease condition, but they may be surgically created for therapeutic reasons.

单词	Pilonidal fistula
释义	Pilonidal fistula 英语百科 Fistula The Latin word fistula (UK /ˈfɪstjʊlə/ or US /ˈfɪstʃələ/ or /ˈfɪʃtʃələ/, plural fistulas /-ləz/ or fistulae /-li/ or /-laɪ/) literally means tube or pipe. In medicine, a fistula is an abnormal connection between two hollow spaces (technically, two epithelialized surfaces), such as blood vessels, intestines, or other hollow organs. Fistulas are usually caused by injury or surgery, but they can also result from an infection or inflammation. Fistulas are generally a disease condition, but they may be surgically created for therapeutic reasons.
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Pilonidal fistula

Fistula