A HUMAN CASE OF PULMONARY DIROFILARIASIS IN OITA WITH SPECIAL REFERENCE TO MORPHOLOGICAL CHARACTERS OF THE CROSS-SECTIONED WORM

Abstract

A Japanese woman, 39, in Oita, Japan who showed a “coin lesion” in the lung on a routine X-ray examination, though asymptomatic, was diagnosed as a pulmonary dirofilariasis due to Dirofilaria immitis by the morphological characteristics of cross-sectioned worm specimens in the resected tissue. Some comments on an internal longitudinal ridge of the worm's cuticle, one of key characters for identification of the genus Dirofilaria, were given.