[Carcinoid of the larynx. Well-differentiated neuroendocrine carcinoma. Apropos of 4 cases].

Four new cases of carcinoid (or well differentiated neuroendocrine carcinoma) of the larynx are reported. This tumor has been recognized since 1969 and may be misdiagnosed as a poorly differentiated carcinoma or adenocarcinoma if the Grimelius stain is not done. Chromogranin A, detected by immunocytochemical methods, is also a good marker of these tumors. The analysis of 41 previously published cases allows a better knowledge of this clinico-pathological entity. The main locations are supraglottic and the prognosis is poor which is very different from the bronchial carcinoid.