Recent malignant testicular tumor trend in Japan, a country with an aging population: a large-scale study of 2012–2015 hospital-based cancer registry data

Abstract

The testicular germ cell tumor patients' mean age was nearly 40 years. The proportions of older testicular germ cell tumor patients and diffuse large B-cell lymphoma patients were higher than previously thought. The reasons for this trend are unknown, but it is important to address the trend identified herein in a country with a super-aging population.