Metastatic disease at diagnosis, serum levels of serum lactic dehydrogenase > 1,000 UI/ml and tumor necrosis < 90% are predictors of unfavorable prognosis. The excessively high incidence of metastatic patients may suggest the presence of an aggressive pattern of disease in our population, or may indicate late diagnosis.
Metastatic disease at diagnosis, serum levels of serum lactic dehydrogenase > 1,000 UI/ml and tumor necrosis < 90% are predictors of unfavorable prognosis. The excessively high incidence of metastatic patients may suggest the presence of an aggressive pattern of disease in our population, or may indicate late diagnosis.
Objective: To identify the clinical features in osteosarcoma and to investigate their influence on the prognosis of children and adolescents presenting this disease. Material and methods:The records of children and adolescents with osteosarcoma treated by the Bone Tumors Group of the state of Rio Grande do Sul, Brazil, between January 1992 and December 2001 were reviewed.Results: Fifty consecutive patients were included in this study. Mean age at diagnosis was 13 years (3-22); 68% of the patients were males. The primary site of disease was the femur in 50% of the patients, tibia in 30%, pelvis in 4%, humerus in 10%, fibula in 2% and other sites in 4%. Nineteen patients presented metastases at diagnosis (38%). All patients received chemotherapy and were treated with three different schemes. As for surgical treatment, 26 patients (52%) had an amputation and 17 (34%) received conservative surgery. Serum lactic dehydrogenase > 1,000 UI/ml (p = 0.0159, log rank), tumor necrosis < 90% and presence of metastases had a negative influence on prognosis. The overall 5-year survival was of 33.2±7.2% with mean follow-up of 36 months (6-126). Event-free survival was 29.7±7%. The 5-year event-free survival in non-metastatic patients was 45±10.7%, and zero in metastatic patients (follow-up of 78.4 and 18.7 months, respectively). Only two out of 19 metastatic patients are alive and free of disease at 18 and 30 months respectively. Conclusion:Metastatic disease at diagnosis, serum levels of serum lactic dehydrogenase > 1,000 UI/ml and tumor necrosis < 90% are predictors of unfavorable prognosis. The excessively high incidence of metastatic patients may suggest the presence of an aggressive pattern of disease in our population, or may indicate late diagnosis.
O estudo anátomo-patológico da tuberculose do sistema nervoso central (SNC) mostra que nas fases iniciais é possível a cura, sem que permaneçam seqüelas, pois as lesões são reversíveis 16 , enquanto que se o diagnóstico for tardio ou se o tratamento for inadequado, as alterações se tornam irreversíveis, podendo haver cura da infecção, permanecendo, entretanto, seqüelas de gravidade variável 22 .Sendo a tuberculose muito freqüente em nosso meio, principalmente em crianças, e tendo em vista a afirmação de Blundi 4 que 70% dos óbitos de meningite tuberculosa ocorrem em crianças menores de 10 anos, faz-se necessário o diagnóstico precoce, para que mais indivíduos consigam atingir a idade adulta e para que a sobrevida ocorra sem seqüelas. Devido à importância da tuberculose do SNC e sua gravidade, resolvemos realizar um estudo de 10 pacientes com menos de 10 anos de idade que apresentaram neurotuberculose, comprovada pelo exame anátomo-patológico. MATERIAL E MÉTODOSO presente estudo compreende 10 casos de comprometimento meningo-encefálico pela tuberculose, em crianças: 9 casos foram autopsiados e um foi estudado mediante biópsia cerebral realizada quando da intervenção cirúrgica para correção da hidrocefalia, secundária à meningite tuberculosa. Dois tinham ficha clínica incompleta, não tendo sido possível a avaliação dos exames realizados. O líquido eefalorraqueano (LCR) foi examinado nos demais 8 casos. Outros exames foram reexaminados, como a radiografia de tórax, de crânio, a pneumencefalografia e a angiografia carotídea.Os pacientes foram subdivididos em três grupos de acordo com o estádio clínico M : I) pacientes com sintomas comuns a infecção, especialmente do SNC, como letargia, irritabilidade, cefaléia e vômitos; II) pacientes que apresentavam sinais gerais de irritação meníngea, acrescidos de envolvimento neurológico focal; III) pacientes com alterações profundas da consciência, geralmente em coma.No exame anátomo-patológico dos 9 casos autopsiados foram assinaladas as alterações encontradas e documentados fotograficamente detalhes mais interessantes. Foram selecionados cortes do encéfalo para ulterior inclusão em parafina.As lâminas foram coradas pela hematoxilina-eosina e pelo método de Ziehl. As lesões foram estudadas ao microscópio óptico, especificando-se o comprometimento meníngeo, encefálico e vascular.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.