Navegando por Palavras-chave "metástases"

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    Carcinoma espinocelular do lábio: avaliação de fatores prognósticos
    (ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2004-12-01) Abreu, Marilda A. M. M. [UNIFESP]; Pimentel, Dalva Regina Neto [UNIFESP]; Silva, Olga M. P. [UNIFESP]; Blachman, Isaac T. [UNIFESP]; Michalany, Nilceo S. [UNIFESP]; Hirata, Cleonice Hitomi Watashi [UNIFESP]; Weckx, Luc Louis Maurice [UNIFESP]; Alchorne, Maurício Mota de Avelar [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Among lip cancers, 90% to 95% of them affect the lower lip and squamous cell carcinoma is the most frequent type. The TNM classification synthesizes the clinical characteristics of the tumor that allows prognosis and makes possible the comparisons of the results. Three parameters have to be considered: size of the tumor (T), propagation to regional lymphatic ganglion (N) and metastasis (M); however, patterns starting from 2cm are established by the TNM classification. In the case of squamous cell carcinoma of the lips, 2cm lesions are considered extremely large. AIM: The objective of this study was to verify the correlation among epidemiologic, clinical, evolutionary and histopathological characteristics of squamous cell carcinoma of the lips, having as parameter lesions as small as 0.5cm. MATERIAL AND METHODS: In the period 1993-2000 in São Paulo, Brazil, a transversal retrospective study was performed with patients exhibiting squamous cell carcinoma of the lips. The characteristics of the tumor were investigated through the analysis of patients' medical charts, original reports of the histopathological exams and tumors' samples. The tumors were classified from 0.5 to 2.5cm. In addition, type, grade of histologic differentiation, the presence of desmoplasia, muscular, neural and vascular infiltration, and type of inflammatory infiltrate were investigated. RESULTS: The statistical analyses indicated that metastasis and recurrences do not depend on patients' gender and race. The independence of the tumor's localization, either in the upper or lower lip, and the incidence of metastasis and recurrence were demonstrated. A correlation between lesions as large as 0.5cm and the occurrence of metastasis and recurrence was verified. Furthermore, it was observed that the size of lesion determines the infiltration in other tissues. Lymphoplasmocytarian is the type of inflammatory infiltrate that was found in each and every lesion. On the other hand, in some of the lesions, the inflammatory infiltrate was associated with eosinophils without correlation to size of tumor. CONCLUSION: Smaller tumors than 2cm, from a histopathological and clinical point of view, may present a distinct evolution behavior. Most of the lesions are ulcerative, though the ulcerative-vegetative is the one that presents the most metastasis and recurrence. The ulcerative-vegetative and vegetative types are associated with the largest lesions. The size of the tumor is related, in a similar way, to grades II and III, in which higher rates of metastasis and recurrence were observed. In decreasing order of frequency, the tumor invades muscles, nerves and blood vessels, which can be related to the size of the lesion. Thus, in order to have metastasis, it is necessary to have infiltration of muscles. Yet, blood vessels can only be involved when there is concomitant infiltration of nerves. As a result, desmoplasia is directly related to size of the lesion as well as to occurrence of metastasis.
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    Metástases cervicais bilaterais no carcinoma epidermóide de cabeça e pescoço: tratamento cirúrgico em um ou dois tempos
    (ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial, 2004-01-01) Amar, Ali [UNIFESP]; Rapoport, Abrão [UNIFESP]; Cervantes, Onivaldo [UNIFESP]; Hospital Heliópolis Departamento de Cirurgia de Cabeça e Pescoço e Otorrinolaringologia; Universidade Federal de São Paulo (UNIFESP)
    AIM: To assess the results of treatment of bilateral neck metastases in patients with squamous cell carcinoma of upper aerodigestive tract. STUDY DESIGN: Retrospective case-series. MATERIAL AND METHODS: The charts of 855 patients with squamous cell carcinoma of mouth, oropharynx, hypopharynx and larynx who underwent ressection of primary tumor and radical neck dissection were reviewed. Ninety-six patients with histologically proven bilateral neck metastases were selected, 73 underwent bilateral radical neck dissection and 23 unilateral radical neck dissection and developed contralateral recurrence. The free disease survival and neck control rates were evaluated. RESULTS: Between 23 patients who underwent unilateral neck dissection and developed contralateral recurrence, only 18 were salvaged. The neck control after 2 years was achieved in 46% of patients. Between 73 patients who underwent bilateral neck dissection, 12 cases of neck recurrences were diagnosed and only 3 patients were salvaged. The neck control after 2 years was 77%, and the free disease survival was similar between the 2 groups, despite of the difference in neck control rates. CONCLUSION: The bilateral neck dissection in one stage was more effective to control neck disease but no difference of disease-free survival in comparison with two stage procedure was observed. Neck control was reached in most patients, but only 35% of those with bilateral metastases were free of disease after 2 years.
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    Metástases do segmento torácico e lombar da coluna vertebral: estudo prospectivo comparativo entre o tratamento cirúrgico e radioterápico com a imobilização externa e radioterapia
    (Academia Brasileira de Neurologia - ABNEURO, 2007-09-01) Falavigna, Asdrubal [UNIFESP]; Righesso Neto, Orlando; Ioppi, Ana Elisa Empinotti; Grasselli, Juliana; Universidade Federal de São Paulo (UNIFESP); Santa Casa de São Paulo Faculdade Federal de Ciências Médicas; UCS
    Bone metastases at the thoracic and lumbar segment of the spine are usually presented with painful sensation and medullar compression. The treatment is based on the clinical and neurological conditions of the patient and the degree of tumor invasion. In the present study, 32 patients with spinal metastasis of thoracic and lumbar segment were prospectively analyzed. These patients were treated by decompression and internal stabilization followed by radiotherapy or irradiation with external immobilization. The election of the groups was in accordance with the tumor radiotherapy sensitivity, clinical conditions, spinal stability, medullar or nerve compression and patient's decision. The Frankel scale and pain visual test were applied at the moment of diagnosis and after 1 and 6 months. The surgical group had better results with preserving the ambulation longer and significant reduction of pain.