Abstract:
:During 6375 patient-years of observation, 136 new cancers developed in 117 of 1429 patients with squamous cell carcinoma of the oral cavity. The risk of multiple cancers was excessive in the upper digestive or respiratory tract in patients with squamous cell carcinoma of the oral cavity, accounting for 87 (64%) of the 136 later cancers. In addition, multiplicity of cancers was site-specific, being common in the oral cavity-esophagus-lung axis and uncommon in sites such as the maxillary sinus and epipharynx. In addition, the observed-to-expected ratio was different in each site of the oral cavity-esophagus-lung axis, i.e., 57.5 for the oral cavity and pharynx, 12.0 for the esophagus, 7.3 for the larynx, and 2.0 for lung cancers.
journal_name
Cancerjournal_title
Cancerauthors
Shibuya H,Hisamitsu S,Shioiri S,Horiuchi J,Suzuki Sdoi
10.1002/1097-0142(19871215)60:12<3083::aid-cncr282subject
Has Abstractpub_date
1987-12-15 00:00:00pages
3083-6issue
12eissn
0008-543Xissn
1097-0142journal_volume
60pub_type
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