RESUMO
The present study reports two cases of oral perineuriomas, including a clinicopathologic review of the 39 published cases (17 intraneural and 22 extraneural perineuriomas) in the English language literature. In the first case, the tumor occurred in an 84-year-old male as a painless, asymptomatic, 20-mm submucosal nodule on the right lower mucobuccal fold near to the premolar area. In the second case, a 46-year-old female presented with a painless, 25-mm, slow-growing, fibrous, pedunculated nodule on the right buccal mucosa. In the first case, the tumor was composed of spindle cells arranged in a storiform pattern, classified as intraneural perineurioma; and in the second, it was an extraneural perineurioma, showing a whorled myxoid stroma. Immunohistochemical analysis confirmed the diagnosis by showing positivity for vimentin, EMA, and Glut-1 in case 1 and EMA, Glut-1, Claudin-1, and CD34 (focally) in case 2. Complete surgical removal was performed for both tumors, and there was no evidence of local recurrence after a long-term follow-up.
Assuntos
Mucosa Bucal/patologia , Neoplasias Bucais/patologia , Neoplasias de Bainha Neural/patologia , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Bucais/cirurgia , Neoplasias de Bainha Neural/cirurgiaRESUMO
The superior laryngeal artery supplies blood to the larynx and has important implications for neck surgery. We report a unilateral, anomalous continuation of this superior laryngeal artery in an elderly male cadaver. The superior laryngeal artery was enlarged from its origin down to the lateral lamina of the thyroid cartilage. At this point, the artery passed through the lamina and continued as an internal branch that supplied the larynx. No other vascular anomalies were noted. Although this anatomical variation is uncommon, the possibility of its occurrence should be kept in mind by clinicians and surgeons who manipulate this anatomical area.