[The "ancient schwannoma". A rare tumor of the mouth floor].

"Ancient schwannomas" of the mouth floor are rare, benign neoplasms derived from the nerve sheath of peripheral nerves. They show many degenerative changes such as necrosis and vascular thrombosis. Ancient schwannomas show histopathological features, such as degenerative changes and atypical nuclei, and may easily be confused with malignant neoplasms.

[The monthly interesting case - case no. 63].

Angiosarcomas are rare, aggressive tumors of vascular origin. They occur most often in areas of long term sun exposed skin in the elderly, in long standing lymphoedema or after radiation therapy. The prognosis is poor, radical surgery required, in addition radiation or chemo-therapy are considered to be therapeutical options.

[Round window membrane defect in divers].

Background: The rupture of the round window membrane is a special form of traumatic inner ear deafness. Because of the changing pressure levels, divers are at risk of developing such a membrane rupture, especially if tube function is disturbed. As the popularity of diving as a sport increases, ENT specialists have to deal with diving related problems increasingly frequently.