XXXX of the hyoid bone: a case report.

@entity1 @entity511 @entity1353 @entity5 @entity876 @entity1282 @entity3 @entity258 @entity2582
@entity511 is a malignancy of the mesenchymal tissue derived from transformed cells that produce the cartilage matrix. In the neck area, it represents less than 0.5% of @entity5 pathology. @entity511 of the hyoid bone is extremely rare, only 20 cases having been published so far (PubMed 2014). We present the case of a 30-year-old @entity1 from the urban area, admitted in the ENT (Ear, Nose _ Throat) Emergency Service with @entity1353 , @entity1282 , stomatolalia, with evolutive and progressive clinical history of 2-3 months. Endoscopic examination revealed a @entity5 process located in the right vallecula, who by mass effect displaces the above-hyoid @entity2582 . CT (computerized tomography) scan described a cervical @entity5 aspect, with multiple septae and inside calcifications with a diameter of 3-4 mm. Surgery consisted in removal of the @entity5 process together with the hyoid bone. Histopathological and especially immunohistochemical examination established the diagnosis of @entity258 of the hyoid bone. For assessment of the phenotype of the @entity5 cells, the following immunohistochemical markers were used: @entity876 , Ki67. The @entity1 followed radiochemotherapic oncological treatment and returned for regular follow-ups. There was a positive development with no signs of regional or remote relapse or @entity3 for 24 months after surgical treatment. Surgery is the treatment of @entity5 , with chemoradiation playing an adjuvant role. Regular tracking of the @entity1 is mandatory.
