Brenner tumour

The Brenner tumor (Fritz Brenner ( 1877-1969 ), pathologist, Osthofen ) is usually a benign, rare ( 0.5-9 %) malignant, rounded firm, to several centimeters large tumor of the ovaries ( ovaries ), which preferentially manifested in women over 50 years of age and can produce estrogens in some of the cases. Because it is often very small ( less than 2 cm ), he often represents a pure chance during a reasons other remote ovary dar. Histologically, it often leads to circumscribed islands of urothelium, which are surrounded by fibrosed stroma.