名词
中文翻译：肛门瘘管
同义词：
['anal fistula', 'anal fistula', 'anal fistula']
例句：
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1.The patient had a perianal fistula that required immediate surgical intervention.
患者有一个肛瘘，需要立即进行手术治疗。
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2.The diagnosis of an anal fistula can be challenging for the doctor.
肛瘘的诊断对医生来说可能是个挑战。
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3.Treatment of an anal fistula often involves antibiotics and surgery.
治疗肛瘘通常需要抗生素和手术。