[Two cases of intrapulmonary lymph node associated with either progressive systemic sclerosis or idiopathic pulmonary fibrosis].
We encountered 2 cases of intrapulmonary lymph node. Case 1 was in a 48-year-old woman who had been given a diagnosis of progressive systemic sclerosis. Case 2 was in a 49-year-old woman with idiopathic pulmonary fibrosis. In each patient, a follow-up chest CT scan showed a pulmonary nodule, which could not be seen on chest X-ray film. Each nodule has an irregular margin and a linear shadow resembling pleural indentation. Histological examination of the open biopsy specimens revealed that these nodules were intrapulmonary lymph nodes surrounded by interstitial pneumonia. Previous case reports and these 2 cases indicate that unless a thoracotomy is done intrapulmonary lymph nodes are difficult to distinguish from lung cancers.
Second Department of Internal Medicine, Hamamatsu University School of Medicine, Japan.
A
A
Yoshitomi
A
A
Sato
M
M
Toyoshima
H
H
Suganuma
S
S
Imokawa
R
R
Tamura
T
T
Suda
T
T
Yagi
H
H
Hayakawa
K
K
Chida
D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008168:Lung; D008198:Lymph Nodes / Q000473:pathology*; D008206:Lymphatic Diseases / Q000473:pathology*; D008875:Middle Aged; D011658:Pulmonary Fibrosis / Q000473:pathology*; D012595:Scleroderma, Systemic / Q000473:pathology*