RESUMO
Salivary tumors that involve the tonsil are rare, representing 0.5% of salivary neoplasms. Most tumors arise from the parotid glands. Rare studies have been reported in the literature regarding pleomorphic adenomas affecting the tonsil. Patients are usually asymptomatic and present with a slow-growing, mobile and painless mass. Radiological examinations are usually unable to differentiate benign from malignant tumors in most cases. There is low recurrence with complete excision of the tumor. The prognosis is excellent except in the rare cases of malignant transformation. This report describes the management of a case of pleomorphic adenoma affecting the palatine tonsils and the difficulty regarding the histopathological diagnosis.
RESUMO
INTRODUCTION: The anterior commissure is an area of glottic cancer infiltration, even in early stages. OBJECTIVE: To evaluate the invasion by tumors into the anterior commissure cartilage in surgical specimens of frontolateral laryngectomy. METHODS: Forty-eight patients who had undergone frontolateral laryngectomy for T1b/T2 squamous cell carcinoma were included. Epidemiological and clinical aspects as well as morphological histopathological analysis were evaluated. RESULTS: Of the 48 patients, 42 (87.5%) had T1b lesions and 6 (12.5%) had T2. Thirty-four cases (70.8%) showed healthy tissue between the tumor and the thyroid cartilage, 10 cases (20.8%) had a tumor in close proximity to the cartilage, and in 4 cases (8.3%) there was cartilage invasion. There was no major risk of adverse outcome in the groups with infiltration or tumor adjacent to the cartilage. Level of differentiation, mitotic index, nuclear irregularity, and the presence of nucleolus and tumor necrosis were not related to cartilage invasion. CONCLUSION: The infiltration of thyroid cartilage occurred in 8.3% of tumors and did not change the outcome in patients submitted to frontolateral laryngectomy. The morphological characteristics did not present any statistical significance.
