Brenner Railway currently considered to have insufficient capacity. Moreover, its steep grades, tight radius bends and the need to change locomotive engines at Brenner due to two different electrical systems as used in Austria and Italy mean that the average travel speed is low. For these reasons, the creation of a new line is planned from Verona to Munich via Innsbruck. At the heart of this project lies a 55 kilometre-long tunnel between Franzensfeste and Innsbruck, known as the Brenner Base Tunnel. The maximum grade on the track is 31 per thousand. The minimum curve radius is 264 metres. The highest point
Brenner tumour nests of transitional epithelial (urothelial) cells with longitudinal nuclear grooves (coffee bean nuclei) lying in abundant fibrous stroma. Transitional cell carcinoma is an even rarer entity, in which neoplastic transitional epithelial cells similar to transitional cell carcinoma of the bladder are seen in the ovary, without the characteristic stromal/epithelial pattern of a Brenner tumour. It is named for Fritz Brenner (1877–1969), a German surgeon who characterized it in 1907. The term "Brenner tumor" was first used by Robert Meyer, in 1932. Brenner tumour Brenner tumors are an uncommon subtype of the surface epithelial-stromal tumor group of ovarian neoplasms. The majority