The Annals of Thoracic Surgery, Vol 21, 382-385, Copyright © 1976 by The Society of Thoracic Surgeons
Dirofilaria immitis (dog heartworm) as a pulmonary lesion in humans
WH Prioleau Jr, EF Parker, RR Bradham and HB Gregorie Jr
Dirofilaria immitis, the dog heartworm, has been identified in the
pulmonary granulomas of 5 patients from the greater Charleston area; this
is the largest series of such cases from one medical center. The patients
had no pulmonary symptoms. On roentgenogram the lesions were all about 2 cm
in size, of uniform light opacity, and located near the pleural surface.
Thoractomy was performed in each instance because of the possiblity of
carcinoma. The association of granuloma formation, pulmonary infarct, and
eosinophilic infiltration led to the suspicion of dirofilaria, which was
confirmed in each case.