[Chondromatous tumors of the larynx based on three case reports with special reference to magnetic resonance tomography].

Cartilaginous tumours of the larynx are rare, altogether about 250 cases being reported in the literature. These tumours typically grow slowly and malignant types usually show only local infiltrative growth. Distant metastases are rarely observed. Up until the present CT has been the main diagnostic tool due to its excellent demonstration of intra-tumoral calcifications. In the German literature Grevers et al. reported on MRI in cases of laryngeal tumours. Since we do not know of any reports discussing the special situation of cartilaginous tumours in this location, we present three cases of cartilaginous tumours outlining the effectiveness of MRI.