INTRODUCTION
Multiple primary malignant tumors present as two or more primary tumors
of different origins in a single person. This condition is rare and
infrequently reported, with an incidence of 0.73–11.7% in cancer
patients.1 Synchronous cancers are defined as those
occurring within 6 months of the first primary cancer, whereas
metachronous cancers are those occurring 6 months
later.2 Synchronous cancers reportedly have an
incidence of 1.7% for breast cancer.3 Concomitant
surgery was performed within 2 weeks in our case since the patient was
diagnosed with triple primary tumors of synchronous type. We then
recorded the surgical outcome and conducted a follow-up for
approximately 3 months. Following surgery, the patient underwent
chemotherapy three times in a disease-free situation.