[Pleural fibroma with a cavity-like air space].
A 45-year-old man was admitted to the hospital because of an increase in the size of an abnormal shadow on chest X-ray films over the preceding 5 years. A chest X-ray film on admission revealed a round air space in a mass-like shadow in the right upper lung field. Results of physical examination, sputum cytologic examination, and Ziehl-Neelsen staining were negative. Histopathological examination of a percutaneous lung biopsy specimen revealed a benign fibrous tumor of the pleura. Thoracotomy revealed a pedunculated tumor arising from the visceral pleura at the apical segment of the right upper lobe. A wedge resection was done. Histological examination revealed that the tumor consisted of regularly-shaped spindle cells with densely collagenous tissue. Normal lung tissue was found to be invaginated into the tumor tissue. These findings are consistent with the radiologic findings.
Takeyama
K
K
First Department of Medicine, Tokyo Women's Medical College, Japan.
Nagai
A
A
Abe
M
M
Kanemura
T
T
Onuki
N
N
Tahara
S
S
Nitta
S
S
Narimatsu
A
A
Kawakami
M
M
Konno
K
K
D005350:Fibroma / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010997:Pleural Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D013902:Radiography, Thoracic