Primary anaplastic small cell (oat cell) carcinoma of the larynx. Review of the literature and report of 18 cases

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Abstract
Anaplastic small cell (oat cell) carcinoma is a neoplasm commonly arising in the lungs. However, it may also occur, though rarely, in the larynx. A series of 43 cases is presented (ten cases from the Armed Forces Institute of Pathology, eight from the Department of Otolaryngology of the Padua University, and 25 from the literature). The tumor often presents in the sixth and seventh decades of life and appears to be highly aggressive, and metastases develop early. The most common presenting symptom is hoarseness. As in pulmonary small cell carcinoma, prognosis is poor and does not seem to depend upon therapeutic modalities, tumor location or the extent of initial local disease. The tumor seems to derive from the Kulchitsky cell present not only in the bronchial mucosa but also in the laryngeal lining. Like pulmonary anaplastic small cell carcinoma, small cell carcinoma of the larynx should be treated with systemic chemotherapy and radiotherapy. The association of small cell carcinoma with squamous carcinoma of the larynx is also reported and problems connected with the histogenesis of this mixed tumor are discussed.

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