1/5. liposarcoma circumscriptum (lipoma-like) of the tongue: report of a case.liposarcoma, first described by Virchow in 1857, is the second most frequent sarcoma of soft tissues, although it is rare both in the head and neck and the oral cavity. Intra-orally, liposarcoma has been reported in the jawbones (particularly the maxilla) and the soft tissues -- mainly the cheek and floor of mouth, but it is rare in the tongue. A case of well-differentiated, superficial liposarcoma circumscriptum of the tongue is reported. The authors underline the difficulties in the clinical and histopathological diagnosis, as this tumour may be confused with lipoma. In view of the indolent behaviour of this tumour type, local recurrence or metastasis rarely occur; consequently, conservative surgical therapy is advised without adjuvant chemo-radio therapy.- - - - - - - - - - ranking = 1keywords = behaviour (Clic here for more details about this article) |
2/5. Clear cell carcinoma of minor salivary gland of the tongue.The case of a clear cell carcinoma of a minor salivary gland, at the basis of the tongue, is described, which represents 1% of malignant tumours of salivary glands. The biological behaviour is not very aggressive and development, which is very slow, is usually asymptomatic, and, indeed, the tumour often reaches considerable dimensions before being diagnosed. There are rare cases of local recurrence and distant metastases. Cases of salivary glands which have become sites of secondary localization of a clear cell tumour, originating in the kidneys, have been described. The interest in the form described here stems from the slow evolution and the considerable dimensions reached by the tumour before being diagnosed, despite development in a breathing or digestive area such as the oralpharyngeal tract. In the present case, computed axial tomography and nuclear magnetic resonance were used to reach the diagnosis. The patient was submitted to surgical treatment. In the differential diagnosis, it is necessary, from a pathological point of view, to take into consideration other neoplastic formations, such as acinar cell adenocarcinoma, epithelial-myoepithelial carcinoma, clear cell oncocytoma, sebaceous adenoma and sebaceous carcinoma.- - - - - - - - - - ranking = 1keywords = behaviour (Clic here for more details about this article) |
3/5. Recurrent oral carcinoma in Ferguson-Smith disease.A patient with multiple self-healing squamous cell carcinomas of the skin is presented. mucous membrane involvement in this condition is very uncommon and the lesions may show aggressive behaviour.- - - - - - - - - - ranking = 1keywords = behaviour (Clic here for more details about this article) |
4/5. marijuana smoking as a possible cause of tongue carcinoma in young patients.A case of T1N0M0 carcinoma of the tongue in a male 23-year-old 'regular' marijuana smoker is described. Hemiglossectomy and complete bilateral neck dissection were carried out. No post-operative radiotherapy was given as the resection margins were histologically negative. The tumour recurred one year later in the left cervical region involving the mandible and surgery was again performed, but after three months, neck disease was still evident. The case described case implies the introduction of marijuana as a possible new risk factor in the development of oral cavity tumours. Resection of the primary lesion has to be as wide as possible even in T1 cases, due to the aggressive biological behaviour of such tumours in young subjects.- - - - - - - - - - ranking = 1keywords = behaviour (Clic here for more details about this article) |
5/5. Polymorphous low-grade adenocarcinoma of minor salivary glands--a report of three cases.Three cases of polymorphous low-grade adenocarcinoma of the minor salivary glands are described. awareness of the pathological features and clinical behaviour of this recently described salivary gland malignancy allows for rational treatment planning and the prospect of an improved prognosis for the patient.- - - - - - - - - - ranking = 1keywords = behaviour (Clic here for more details about this article) |