The incidences of malignant gonadal and extragonadal germ cell tumors in males and females: a population-based study covering over 40 years in Finland.

Purpose Germ cell tumors (GCTs) comprise a heterogeneous group of tumors derived from primordial germ cells. The incidence of malignant testicular GCTs has increased in recent decades, but little is known about possible changes in malignant female GCTs. Population-based data covering all malignant GCTs in both sexes remain limited.