title: Spontaneous pneumothorax after stereotactic radiotherapy for non-small-cell lung cancer.
abstract: The report presented here describes a case of spontaneous pneumothorax observed after stereotactic radiotherapy (SRT) for non-small-cell lung cancer (NSCLC). An 84-year-old man with a Stage IIB, T3N0M0 NSCLC in the right upper lobe and a Stage IA NSCLC in the right lower lobe of the lung was treated with SRT for both tumors. He received SRT with a total dose of 60.0 Gy in 10 fractions delivered to the right upper lobe, and 48.0 Gy in 4 fractions delivered to the right lower lobe. Two months after completion of the treatment, he developed spontaneous pneumothorax. He was asymptomatic and recovered with conservative management. Spontaneous pneumothorax has occasionally been reported to occur following thoracic radiotherapy for malignancy. Almost all of the reported cases are patients who had received mantle irradiation for Hodgkin's disease. We have been unable to fi nd any reports of spontaneous pneumothorax after SRT, which has recently been used for treating patients with early-stage NSCLC. Because a case of spontaneous pneumothorax after SRT was observed in our institution, its clinical course is described here along with a discussion of possible causes of spontaneous pneumothorax.
authors.affiliation: Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. kohnishi@radiol.med.kyushu-u.ac.jp
authors.forename: Kayoko
authors.initials: K
authors.lastname: Ohnishi
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Shioyama
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nomoto
authors.forename: Tomonari
authors.initials: T
authors.lastname: Sasaki
authors.forename: Saiji
authors.initials: S
authors.lastname: Ohga
authors.forename: Tadamasa
authors.initials: T
authors.lastname: Yoshitake
authors.forename: Takashi
authors.initials: T
authors.lastname: Toba
authors.forename: Kazushige
authors.initials: K
authors.lastname: Atsumi
authors.forename: Takehiro
authors.initials: T
authors.lastname: Shiinoki
authors.forename: Hiromi
authors.initials: H
authors.lastname: Terashima
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Honda
mesh_terms: D000369:Aged, 80 and over; D002289:Carcinoma, Non-Small-Cell Lung / Q000601:surgery*; D006801:Humans; D008175:Lung Neoplasms / Q000601:surgery*; D008297:Male; D011030:Pneumothorax / Q000000981:diagnostic imaging / Q000209:etiology*; D016634:Radiosurgery / Q000009:adverse effects*; D014057:Tomography, X-Ray Computed