title: [A case of pulmonary dirofilariasis that required differentiation from nontuberculous mycobacteriosis].
abstract: A 48-year-old man was admitted with an abnormal shadow on a chest X ray. Chest X ray and CT revealed a solitary nodule in the right lung field. Mycobacterium gordonae was cultured from sputum. Tumorectomy by video-assisted thoracoscopic surgery was done for histological diagnosis, and Dirofilaria worms accompanied with epithelioid cell granuloma with necrosis were found, while no bacteria were cultured from biopsy specimen, thus we diagnosed dirofilariasis. Because a solitary nodule can be caused by either Dirofilaria species or nontuberculous mycobacteria, this case was of interest with regard to the differential diagnosis of a lung solitary nodule.
authors.affiliation: Department of Internal Medicine and Molecular Science, Nagoya City University Graduate School of Medical Sciences.
authors.forename: Takashi
authors.initials: T
authors.lastname: Niimi
authors.forename: Shigeki
authors.initials: S
authors.lastname: Sato
authors.forename: Hiroyoshi
authors.initials: H
authors.lastname: Maeda
authors.forename: Noriko
authors.initials: N
authors.lastname: Yamada
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Oguri
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Achiwa
authors.forename: Hideki
authors.initials: H
authors.lastname: Muramatsu
authors.forename: Yuji
authors.initials: Y
authors.lastname: Bessho
authors.forename: Mikinori
authors.initials: M
authors.lastname: Miyazaki
authors.forename: Yuko
authors.initials: Y
authors.lastname: Takano
authors.forename: Shigeki
authors.initials: S
authors.lastname: Shimizu
authors.forename: Ryuzo
authors.initials: R
authors.lastname: Ueda
mesh_terms: D003937:Diagnosis, Differential; D004184:Dirofilariasis / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008174:Lung Diseases, Parasitic / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009165:Mycobacterium Infections, Nontuberculous / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed