Levinson E D, Ziter F M, Westcott J L
Radiology. 1979 May;131(2):305-7. doi: 10.1148/131.2.305.
Chest radiographs of 4 patients with Dirofilaria immitis (dog heartworm) revealed solitary, small, peripheral, noncalcified nodular lesions. The pulmonary lesions were apparently produced secondary to lodging of the parasite in peripheral pulmonary vessels. None of the patients had symptoms referable to the heartworm lesions. Needle aspiration in 2 patients revealed a nonspecific inflammatory lesion.
4例感染犬恶丝虫（犬心丝虫）患者的胸部X光片显示有孤立的、小的、外周的、非钙化的结节性病变。肺部病变显然是寄生虫寄生于外周肺血管继发产生的。所有患者均无与心丝虫病变相关的症状。2例患者的针吸活检显示为非特异性炎性病变。
