Case Report This is Mr. BM, 53 years old, non smoking. who was sent from the ENT where he consulted for the first time for a dysphonia, an anterior cervical mass of slow growth lasting for ane year with laryngeal dyspnea why the patient had emergency tracheostom Indirect laryngoscopy showed a tumor of the right hemi larynx interesting all three floors. Computed tomography of the larynx revealed a tumor of the larynx right hemi relevance to all three floors, measuring 35 mm in diameter and invading hyo-thyro-epiglottic space, thyroid cartilage, cricoid cartilage and the isthmus and the right thyroid lobe with mediastinal lymphadenopathy and neck (Figure 1). Staging and distance search of a primary cancer, including a CT scan of the chest and abdominal ultrasound was negative. Histological study of biopsy performed revealed a chondrosarcoma grade 2 classification ONeal and Ackerman. Surgical treatment consisted of total laryngectomy with right mediastinal and récurrentiel lymph node dissection. The pathological stndy of the surgical specimen was in favor of a laryngeal chondrosarcoma infiltrating the thyroid and cervical soft tissues with 29 negative nodes. The postoperative course was uneventful.