[Ovarian teratomas: some clinical and statistical factors based on 456 patients operated on in the Institute of Gynecology and Obstetrics Academy of Medicine in Lodz]. / Potworniaki jajników: niektóre wspólczynniki kliniczno-statystyczne w oparciu o dane u 456 chorych operowanych w Instytucie Ginekologii i Poloznictwa Akademii Medycznej w Lodzi.

In the years 1977-1994 456 cases of teratomas located in one ovary and 47 in two ovaries were diagnosed. 88,8% of patients were between 16 and 50 years old, with the peak of occurrence between 25 and 30 years. In 5% malignant teratomas were diagnosed.