[A Case of Triple Cancer-A Patient Developed Malignant Lymphoma and Colon Cancer, during Breast Cancer Treatment].

Reports of multiple cancer cases are increasing with the improvement of diagnostic techniques and the extension of life expectancy. In addition, the increase in the prevalence of multiple cancers is expected because the increase in the prevalence of juvenile breast cancer has been a concern in recent years. Particularly, in the case of simultaneity, the problem is how much treatment priority and curability should be sought depending on the stage and prognosis of each tumor. We report a case of malignant lymphoma and colon cancer that occurred during breast cancer treatment.