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Vol.39 No.3 contents | Japanese/English |
- Original Article -
Analysis of Other Nodules Detected in Cases of Lung Cancers -Computed Tomography and Pathological Findings-
Shingo Kakeda, Takatoshi Aoki, Hideyuki Watanabe, Keiko Hirakata, Hajime Nakata, Ryoichi Nakanishi* and Kousei Yasumoto*Department of Radiology, University of Occupational and Environmental Health School of Medicine, *The Second Department of Surgery
CT and pathological findings were analysed concerning 28 nodules detected in lobes other than those with primary lung cancers. As for solid type nodules on CT, their margins were irregular in all 5 malignant nodules, while they were smooth in 8 of 10 benign nodules. However as for the type of air-containing/mixed attenuations, most benign and malignant nodules showed irregular margins and it was difficult to distinguish between them. Although 7 of 12 lesions with identical histologies showed similar growth patterns suggesting metastases, the possibility of multiple primary lung cancers could not be excluded in some of them. When other nodules are detected on preoperative CT in lobe other than that containing the primary lung cancer, a histological confirmation is recommended in most cases with regard to the possibility of multiple metastasis.
key words: Lung cancer, Nodule other than primary tumor, CT, Pathology, Diagnosis
Received: February 17, 1999
Accepted: April 26, 1999
JJLC 39 (3): 309-316, 1999
