Laryngeal Chondrosarcoma: A Case Report
Introduction: Chondrosarcoma is a type of slow-growing nonepithelial malignant tumor that most commonly originates in the long bones. Chondrosarcoma of the head and neck are uncommon accounting for 10% of all chondrosarcomas. Laryngeal chodrosarcoma is the most common nonepithelial malignant tumor of the larynx. It constitutes less than 1% of laryngeal tumors and 0.07 to 2% of malignant laryngeal tumors.
Objectives: The aim of this study is to report a case of a laryngeal chondrosarcoma, a rare tumor of head and neck, in which diagnosis is easily neglected because of slow growing and lack of symptoms. Resumed Report: We reported the case of a 75-year-old man with a history of dyspnea on moderate and mild exertion lasting 1.5 years, progressing to acute respiratory failure and underwent an emergency tracheotomy in other service. During research with bronchoscopy, the examination was observed to be extensive subglottic mass with obstruction of about 90% of the laryngeal lumen. The two initial lesion biopsies were inconclusive. A computed tomography scan of the neck showed laryngeal stenosis by solid lesion containing calcification and distortion of adjancentes cartilage, being hypothesized subglottic chondrosarcoma. The diagnosis was confirmed after a biopsy under suspension laryngoscopy—well-differentiated chondrosarcoma grade I. The patient follows a specialized cancer center with a favorable outcome.
Conclusions: Laryngeal chondrosarcoma is a rare tumor and can be considerate as differential diagnosis in patients with vocal immobility without obvious signs of neoplasms.
Keywords: Chondrosarcoma, larynx, subglottic.