[Cancer in husband and wife--a report of 105 couples]. 
The occurrence of cancer in both members of 105 couples related only by marriage, is reported from a regional hospital, 68 couples had tumors of the same histopathologic type.  6 had tumors of the same organ, with similar histology.  The tumors were of the brain (astrocytoma), urinary bladder (transitional cell carcinoma) lung (adenocarcinoma), retroperitoneum (sarcoma), stomach (adenocarcinoma) and colon (adenocarcinoma).  The significance of our observations is unclear, and they are most probably coincidences.  Analysis of more data could help to explain these observations, because factors such as environment, nutrition and contamination affect both members of a married couple for extended periods of time.