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Vol.48 No.1 contents | Japanese/English |
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- Case Report -
A Case of Mucinous ("Colloid") Adenocarcinoma for Which Diagnosis Was Difficult
Kyoko Masumura1, Kazuhiko Kataoka2, Toshiya Fujiwara2, Motoki Matsuura2, Noritomo Seno21Department of Surgery, 2Department of Thoracic Surgery, Hiroshima Shimin Hospital, Japan
Background. Mucinous ("colloid") adenocarcinoma of the lung is a rare malignancy. Case. A 71-year-old woman was admitted to our hospital because of an abnormal shadow in the right lung field on a routine health check chest X-ray. Chest CT showed a consolidation 80 mm in diameter in right lower lobe. FDG-PET (fluorodeoxyglucose-positron emission tomography) showed no accumulation in the lesion. Through the follow up, the size of the lesion was not changed. The diagnosis was not defined by percutaneous CT-guided needle biopsy. We performed an operation for definite diagnosis and treatment. Sure core needle biopsy intra-operative frozen section histology showed carcinoma with abundant mucin, a right lower lobectomy with lymph node dissection was performed. The pathologic classification was determined with mucinous ("colloid") adenocarcinoma, T2N0M0, Stage IB. Conclusion. We here report a case of mucinous ("colloid") adenocarcinoma for which diagnosis was difficult.
key words: Mucinous ("colloid") adenocarcinoma, Lung cancer, FDG-PET (fluorodeoxyglucose-positron emission tomography), Goblet-cell type
Received: October 3, 2007
Accepted: December 18, 2007
JJLC 48 (1): 62-67, 2008
