Uncommon breast tumors in perspective: Incidence, treatment and survival in the Netherlands

Abstract The relatively small group of patients with breast tumors other than the ductal, lobular or mixed ducto‐lobular types, has reached nonnegligible numbers due to the ongoing increase in the incidence of breast cancer. We investigated stage and grade distribution of uncommon breast tumors using the nation‐wide Netherlands Cancer Registry (population 16.5 million) and incidence patterns, treatment and long‐term survival (up to 19 years) using the regional Eindhoven Cancer Registry (population 2.4 million). Incidence of all uncommon breast tumors together was 9.2/100,000 person years (age‐... Mehr ...