Chondrosarcoma of the larynx.

A case of a low grade chondrosarcoma of the cricoid cartilage which had been diagnosed initially as a chondroma is presented. The tumour recurred twice after limited surgical resections. Total laryngectomy was inevitable due to near total involvement of the cricoid cartilage and subsequent histological examination revealed a low grade chondrosarcoma.

[Malignant melanoma of the nasal fossae with a course of more than 8 years (author's transl)].

Two important points are emphasized:--1 to 2% of tumours of the nasal fossae are melanomas.--40% of melanomas of the cervico-facial region are situated in the nasal fossae. This case was felt worthy of publication, its course being remarkable by virtue of its duration:--9 years.

[Neuroma of the larynx. One case (author's transl)].

Neuroma of the larynx is an isolated nerve tissue tumour in the majority of cases. Such tumours are relatively infrequent in the ENT area, but become extremely rare with regard to a laryngeal site. The present case is reported for its statistical interest.

[Contribution to study of plasmocytomas of the upper respiratory tract. 3 cases (author's transl)].

The authors studied the solitary plasmocytoma, since it would appear to pose a triple problem: diagnostic, prognostic and therapeutic. 1. From a diagnostic standpoint, histological interpretation, even by experienced histopathologists would appear to be extremely difficult since study of the course showed that in a significant number of cases a carcinoma develops, indicating that the previous diagnosis was erroneous.