Diagnosis and Treatment of Small Cell Carcinoma of the Larynx: A Critical Review

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Abstract
Small cell carcinoma of the larynx is an uncommon neuroendocrine tumor with particular pathologic, therapeutic, and prognostic connotations. The first case of this lesion was observed in Canada in 1972. Fourteen cases of small cell carcinoma of the larynx were observed in the Ear, Nose, and Throat Department of Padua University in a series of 3,284 primary and secondary laryngeal and hypopharyngeal malignant neoplasms. This number constitutes the largest collection from a single institution in the literature and brings the total recorded cases to 66. The tumor is thought to arise from the argyrophilic Kulchitsky cells normally found in laryngeal mucosa. The diagnosis is based on the light microscopic appearance of the neoplasm and can be confirmed by electron microscopy. The differential diagnosis must be made from carcinoid, atypical carcinoid, small cell squamous carcinoma, small cell ductal carcinoma, lymphoma, mycosis fungoides, and metastatic lung small cell cancer. Systemic chemotherapy with radiation therapy is the accepted manner of treatment today. The survival of the patients treated with these modalities may be significantly improved, and some patients may be cured.

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