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MR Vol.12 No.4 indexに戻る
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MODERN RHEUMATOLOGY
Vol.12 No.4 |
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Frequency of broncho-bronchiolar disease in rheumatoid
arthritis: an examination by high-resolution computed tomography |
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| T. Izumiyama1, H. Hama2, M. Miura3, A.
Hatakeyama1, Y. Suzuki1, T. Sawai4, T. Saito5 |
(1)Division of Arthritis and Connective
Tissue Diseases, Labour Welfare Corporation, Tohoku Rousai Hospital,
4-3-21 Dainohara, Aoba-ku, Sendai 981-8563, Japan Tel. +81-22-275-1111;
Fax +81-22-275-7541 e-mail: to-iz-@tohokuh.rofuku.go.jp
(2)Department of Radiology, Labour Welfare Corporation, Tohoku
Rousai Hospital, Sendai, Japan
(3)Department of Respiratory Medicine, Labour Welfare Corporation, Tohoku
Rousai Hospital, Sendai, Japan
(4)Department of Pathology, Iwate Medical University, Morioka, Japan
(5)Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan |
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| Abstract |
| Abstract To assess the frequency of pulmonary
changes in patients with rheumatoid arthritis (RA), we evaluated
a subject group (all outpatients with RA visiting the hospital
during a period of three consecutive days) by plain chest radiographs
(CRs) and high-resolution computed tomography (HRCT). The study
population consisted of 186 patients (32 men, 154 women; mean age
59.8 years), including 6 smokers or exsmokers. Chest radiography
was performed on all patients. Seventy (Group A) patients demonstrated
abnormal findings and 116 (Group B) did not. HRCT scans were performed
on 69 of Group A and 54 of Group B. HRCT demonstrated centrilobular
micronodules (n = 29; 23.6%), septal lines (n = 24; 19.5%), subpleural
curvilinear shadows (n = 24; 19.5%), bronchiectasis (n = 21; 17.1%),
dependent opacity (n = 14; 11.4%), nodules (n = 12; 9.8%), and
honeycombing (n = 11; 8.9%). Ten (34%) of the patients with centrilobular
micronodules also had bronchiectasis. The most frequent disorder
was broncho-bronchiolar disease. Contrary to the CRs finding of
no abnormality, HRCT detected pulmonary pathological findings in
40 of 54 patients (74.1%). Pulmonary diseases may be frequently
latent, and HRCT is useful in evaluating them in patients with
RA. |
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| Key words |
| Key words Broncho-bronchiolar disease
・ High-resolution computed tomography (HRCT) ・ Rheumatoid arthritis
(RA) |
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