[Rare causes for epistaxis (author's transl)].

Rare causes for nosebleeding are different benigne and malignant tumors of the nose and aneurism of the internal carotid artery. Two cases of rupture of an aneurism of the internal carotid artery are reported. One case with a hemangioma of the nasolacrimal duct and the problematic therapy of epistaxis are discussed in cases with Osler's disease.