Journal of Nippon Medical School: Vol.70 No.2 page.186

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ArticleTitle 経過中に陰影の縮小を認め同時多発癌と考えられた細気管支肺胞上皮癌の1例

AuthorList 吉川真由美¹, 佐藤雅史²

Affiliation ¹日本医科大学付属多摩永山病院内科
²日本医科大学付属第二病院放射線科

Language JA

Volume 70

Issue 2

Year 2003

Page 186-190

Received October 4, 2002

Accepted Nobember 6, 2002

Keywords lung cancer, bronchiolo-alveolar cell carcinoma, chest CT imaging

Abstract It is very important for clinicians to recognize that some lung cancers, especially among the bronchiolo-alveolar cell carcinomas (BAC), rarely show mild improvement in opacity during the clinical course. We would like to present a 63-year-old woman who demonstrated very unusual exacerbation and improvement in lung opacity during 7 years of follows up. The abnormal chest shadows pointed out in an initial screening checkup and in a following chest CT presented 4 nodules in both lung fields; 2 of them appeared to have cavities. One of these nodules showed a definitely reduced size in a chest CT taken after one year of follow up study. We therefore determined it was probably not malignant of this time. But, after seven years the patient revisited our institute complaining of bronchorrhea. The chest CT taken immediately revealed increased size of each nodule and progression to pulmonary consolidation of the right lower lobe. A transebroncheal biopsy led to a diagnosis of bronchiolo-alveolar cell carcinoma pathologically. The incidence of BAC has recently shown a remarkable increase and radiological images of these tumors are various. It is important, therefore, to consider the possibility of BAC for differential diagnose of cases presenting abnormal pulmonary shadows.

Correspondence to Mayumi Yoshikawa, Department of Internal Medicine, Tama-nagayama Hospital. Nippon Medical School, 1-7-1 Nagayama, Tama-shi, Tokyo 206-8512, Japan

ArticleTitle	経過中に陰影の縮小を認め同時多発癌と考えられた細気管支肺胞上皮癌の1例
AuthorList	吉川真由美¹, 佐藤雅史²
Affiliation	¹日本医科大学付属多摩永山病院内科 ²日本医科大学付属第二病院放射線科
Language	JA
Volume	70
Issue	2
Year	2003
Page	186-190
Received	October 4, 2002
Accepted	Nobember 6, 2002
Keywords	lung cancer, bronchiolo-alveolar cell carcinoma, chest CT imaging
Abstract	It is very important for clinicians to recognize that some lung cancers, especially among the bronchiolo-alveolar cell carcinomas (BAC), rarely show mild improvement in opacity during the clinical course. We would like to present a 63-year-old woman who demonstrated very unusual exacerbation and improvement in lung opacity during 7 years of follows up. The abnormal chest shadows pointed out in an initial screening checkup and in a following chest CT presented 4 nodules in both lung fields; 2 of them appeared to have cavities. One of these nodules showed a definitely reduced size in a chest CT taken after one year of follow up study. We therefore determined it was probably not malignant of this time. But, after seven years the patient revisited our institute complaining of bronchorrhea. The chest CT taken immediately revealed increased size of each nodule and progression to pulmonary consolidation of the right lower lobe. A transebroncheal biopsy led to a diagnosis of bronchiolo-alveolar cell carcinoma pathologically. The incidence of BAC has recently shown a remarkable increase and radiological images of these tumors are various. It is important, therefore, to consider the possibility of BAC for differential diagnose of cases presenting abnormal pulmonary shadows.
Correspondence to	Mayumi Yoshikawa, Department of Internal Medicine, Tama-nagayama Hospital. Nippon Medical School, 1-7-1 Nagayama, Tama-shi, Tokyo 206-8512, Japan