A Case of Typical Carcinoid of the Larynx

Table 1

Classification of neuroendocrine tumors of the larynx by WHO, 2003.

Terminology	Synonyms
(A) Typical carcinoid	Carcinoid, well-differentiated (Grade I) neuroendocrine carcinoma
(B) Atypical carcinoid	Malignant carcinoid, moderately differentiated (Grade II) neuroendocrine carcinoma, large-cell neuroendocrine carcinoma^1
(C) Small-cell carcinoma, neuroendocrine type^2	Small-cell neuroendocrine carcinoma, poorly differentiated (Grade III) neuroendocrine carcinoma
(D) Combined small-cell carcinoma, neuroendocrine type, with non-small-cell carcinoma (squamous cell carcinoma, adenocarcinoma, etc.)	Combined small-cell carcinoma, composite small-cell carcinoma
(E) Paraganglioma	Nonchromaffin paraganglioma

1Some atypical carcinomas may fulfill diagnostic criteria for large-cell neuroendocrine carcinoma of the lung.
2Not all small-cell carcinomas of the larynx will show neuroendocrine differentiation.