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Vol.40 No.2 contents | Japanese/English |
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- Case Report -
A Case of Lung Carcinoid Showing a Unique Growth Pattern
Naoyuki Yoshino1, Teruaki Koike1, Tsuneyo Takizawa1, Masanori Terashima1, Keiichi Honma2, Junichi Oda31Department of Thoracic Surgery, 2Department of Pathology, 3Department of Radiology, Niigata Cancer Center Hospital
Case: A 68-year-old woman producing much sputum had been treated as bronchitis from 1993. In January 1999, she was admitted to another hospital for pneumonia. She changed hospital because her dyspnea worsened, and underwent chest CT. A tumor in the right bronchus was pointed out. Bronchoscopy revealed the truncus intermedius to be obstructed by a white-yellow movable mass. It was suspected to be lung carcinoid based on washing cytology and chest CT. Right middle sleeve lobectomy was performed on April 1999. The mass had a stem at the orifice of the middle lobe bronchus diverging from the lateral side of truncus intermedius, and projected into the bronchial lumen. It had tumor component only in its stem. The white-yellow mass surrounding the component of tumor seemed to be mucoid material. Histologically this tumor was lung carcinoid, and a part of epithelium covering tumor had a cleft. We considered that this mucoid material was stratified from this cleft, indicating a unique growth pattern.
key words: Lung carcinoid, Sleeve resection, Bronchoplastic procedure, Singular form
Received: November 15, 1999
Accepted: January 31, 2000
JJLC 40 (2): 129-132, 2000
