Abstract |
Diffuse interstitial pneumonia of unknown etiology has been subclassified into two groups on the patho-histological basis by the study group under the sponsorship of the Japanese Ministry of Health and Welfare. One is Group A, typical idiopathic subtype, fundamentally corresponding to UIP ( usual interstitial pneumonia, Liebow) and the other is Group B, closely similar to Group A but possibly modified by respiratory infection. As the clinical features of Group B have not been clarified so far, we investigated them in 8 cases of Group B (M:F = 7:1, 56.7 years at first visit) and 5 cases of Group A (M: F = 4:1, 54.4 years), all of which were pathologically diagnosed by open lung biopsy and/or autopsy. Only in Group B, there were 3 cases with occupations related to dust exposure, and 7 cases with intermittent but persistent mucus expectoration. The duration of symptoms before the first presentation to hospital was longer in Group B than in Group A (1.6 years vs. 0.6 years). Clubbed fingers were more frequently observed in Group B (n = 6 vs. n = 1), but induration in the tuberculin test was less frequent in Group B (n = 1 vs. n = 5). In the chest X-ray findings, pleural thickening was frequent in Group B (n = 6 vs. n = 0), but elevation of the diaphragm was unusual in Group B (n = 2 vs. n = 5).(ABSTRACT TRUNCATED AT 250 WORDS)
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Authors | M Yoshikawa, F Kitatani |
Journal | Nihon Kyobu Shikkan Gakkai zasshi
(Nihon Kyobu Shikkan Gakkai Zasshi)
Vol. 32
Issue 7
Pg. 625-31
(Jul 1994)
ISSN: 0301-1542 [Print] Japan |
PMID | 7967234
(Publication Type: Clinical Trial, Comparative Study, Journal Article)
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Topics |
- Adult
- Aged
- Diagnosis, Differential
- Diaphragm
(diagnostic imaging)
- Female
- Humans
- Lung Diseases, Interstitial
(classification, diagnosis)
- Male
- Middle Aged
- Pleura
(diagnostic imaging)
- Prognosis
- Radiography, Thoracic
- Tuberculin Test
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