Case Reports
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[Extramedullary plasmacytoma of the larynx:a case report].

This paper reported a case of extramedullary plasmacytoma of the larynx. The patient presented with persistent hoarseness and foreign body sensation in pharynx for 5 months. Left anterior laryngeal mass, left epiglottis fold distention was found during laryngoscopy. Cervical image examination showed that the left side wall of the glottis was thickened and showed a lump-like change, part of which protrusion into the laryngeal cavity, the laryngeal chamber became narrow, and the growth of thyroid cartilage was broken outwards and reached the level of the hyoid bone. After completing the examination, the laryngeal tumor resection and biopsy were performed under the suspension laryngoscope. Pathologic findings showed that diffuse proliferation of small cells was observed in laryngeal subepithelial fibrous tissue, with local appearance of private, atypia and mitosis. Combined with immunohistochemical results, it was consistent with plasma cell tumor.

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