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Solitary Pulmonary Nodule Due to Dirofilariasis: A Case Report and Case Review in Taiwan

犬心絲蟲造成孤立肺部結節:病例報告與台灣病例整理

摘要


犬心絲蟲(Dirofilariasis immitis)造成孤立性肺部結節(Solitary pulmonary nodule)在感染人類的寄生蟲病例中屬於少見。對犬心絲蟲而言,人類是終宿主;而其在人類肺部導致的主要問題是局部的肺部栓塞,與蟲體凋亡之後併發的肉芽腫和纖維化。在本文中,我們報告一位53歲男性病患,因肺部感染犬心絲蟲造成的孤立性結節。臨床上,因為犬心絲蟲造成的肺部結節在影像學檢查不易與惡性腫瘤作區別,所以建議臨床醫師對於孤立性肺部結節必須考慮犬心絲蟲感染的可能性。

並列摘要


Solitary pulmonary nodule caused by Dirofilariasis immitis (dog heartworm), a filarial nematode, is a rare lung parasitic infection. Man is a ”dead end” host of D. immitis. The greatest problem that D. immitis creates in the human body is focal pulmonary infarction with a secondary granulomatous and fibrotic reaction after necrosis of the worm. We reported a 53-year-old male patient with a solitary pulmonary nodule in the left upper lung caused by dirofilariasis. The solitary nodule caused by human pulmonary dirofilariasis is easily confused with cancer. Clinicians should be alert to the possibility of pulmonary dirofilariasis when a solitary, noncalcified pulmonary nodule is noted.

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