 |
Vol.41 No.6 contents | Japanese/English |
 | Full Text of PDF (392K) Article in Japanese |
- Case Report -
A Case of Slow-growing Mucous-producing Adenocarcioma of the Lung
Orie Sakon1, Michio Hirasawa1, Takashi Ochi1, Eiji Itoh1, Masaaki Satoh2 and Shosaku Abe11Third Department of Internal Medicine, School of Medicine, Sapporo Medical University, Sapporo, 2Department of Clinical Pathology Sapporo Medical University Hospital, Sapporo
Background: Most lung adenocarcinomas show poor prognosis. However, some cases of slowly progressive adenocarcinoma have been reported. Case: A case of a 43-year old man with lung adenocarcinoma was reported. An abnormal shadow was pointed out in the left middle lung field on the chest X-ray film in 1994, but he did not undergo further examination. When he was admitted to a hospital complaining of cough and bloody sputum in 1999, the chest X-ray film revealed a mass in the left middle lung field and multiple nodular densities in bilateral lung fields. The diagnosis of adenoid cystic carcinoma of the lung was made by a transbronchial lung biopsy of the left S6. He visited our hospital for further examination. We performed transbronchial lung biopsy of the right S2b, S3a, S4a and S8a. The histological findings showed that tumor cells proliferated with a cribriform pattern and some tumor cells were surrounded with much mucinous material. Immunohistochemically, the findings suggested that myoepithelial cells were not present, and the basal membrane did not exist in the duct like structure. Thus, we diagnosed this case as a mucous-producing lung adenocarcinoma, not as adenoid cystic carcinoma. Although chemothrapy was not effective, his performance status is still good in July, 2001. Conclusion: Some cases of mucus-producing lung adenocarcinomas grow very slowly.
key words: Mucous-producing lung adenocarcinoma, Slow-growing, Bronchial gland cell type adenocarcinoma, Adenoid cystic carcinoma
Received: April 26, 2001
Accepted: September 19, 2001
JJLC 41 (6): 681-685, 2001
