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1.
PLoS One ; 15(1): e0227445, 2020.
Article in English | MEDLINE | ID: mdl-31923282

ABSTRACT

INTRODUCTION: Thrombotic microangiopathy (TMA) in post-transplant setting has heterogeneous clinical manifestations. METHODS: We retrospectively studied data of 89 patients with post-transplant TMA, which was characterized by thrombi in at least one glomerulus and/or arteriole. Systemic TMA was defined by thrombocytopenia and microangiopathic anemia and early onset TMA, when occurred less than 90 days post transplant. RESULTS: The cumulative incidence was 0.93%. The majority of the recipients were young (mean age 39 years), female (52%) and Caucasian (48%) with primary kidney disease of unknown etiology (37%). Early TMA occurred in 51% of the patients and systemic TMA, in 25%. Underlying precipitating factors were: infection (54%), acute rejection (34%), calcineurin inhibitor toxicity (13%) and pregnancy (3%). 18% of the patients had several triggers. Glomerular TMA was observed in 50% of the biopsies and endothelial cell activation, in 61%. The 1-year patient survival was 97% and corresponding graft survival, 66%. Allograft survival was inferior when acute antibody mediated rejection (ABMR) occurred (with 41%; without 70%, p = 0.01), however no differences were determined by hemolysis, time of onset, thrombi location or endothelial cell activation. CONCLUSIONS: Our results suggest that post-transplant TMA is a rare but severe condition, regardless of its clinical and histological presentation, mainly when associated to ABMR.


Subject(s)
Kidney Transplantation/adverse effects , Thrombotic Microangiopathies/etiology , Adult , Female , Graft Rejection/complications , Graft Rejection/immunology , Humans , Incidence , Infections/complications , Kidney Diseases/complications , Kidney Diseases/therapy , Male , Middle Aged , Pregnancy , Retrospective Studies , Thrombotic Microangiopathies/pathology , Transplantation, Homologous/adverse effects
2.
Nephron ; 138(2): 147-156, 2018.
Article in English | MEDLINE | ID: mdl-28892806

ABSTRACT

BACKGROUND/AIMS: Fabry disease (FD), an X-linked lysosomal storage disorder, leads to accumulation of globotriaosylceramide. Screening in dialysis patients may identify genetic variants of unknown clinical significance. We aimed to characterize the pathogenicity of a novel GLA gene mutation identified during hemodialysis screening and the histologic findings of early Fabry nephropathy. METHODS: One out of 108 male hemodialysis patients screened for FD presented low α-galactosidase A activity. A novel missense mutation (p.G35V) in the GLA gene was detected. Family screening identified 11 additional cases (8 women). Clinical investigation was conducted in 10 patients (index case and 9 relatives). Pathogenicity of the new mutation was investigated by clinical and laboratory tests, cardiac and cranial magnetic resonance imaging, and kidney biopsy. RESULTS: Cardiac manifestations were detected in most patient from both genders, such as left ventricular hypertrophy and short PR interval. White matter lesion was present in 3 women. Pulvinar lesion of the thalamus and ischemic stroke were detected in male patients. Abnormal glomerular filtration rate (GFR) and/or albuminuria were present in 5 patients (3 women). Renal biopsies (n = 7) revealed globotriaosylceramide deposits in different cell types and foot processes effacement in all patients, including women with normal albuminuria. Despite a normal GFR, tubulointerstitial fibrosis ranging from 5 to 20% was present in young women and men with normal or high albuminuria, respectively. CONCLUSION: The novel missense mutation p.G35V leads to severe systemic manifestations of FD in men and women. Kidney histological changes, including tubulointerstitial fibrosis, may predate albuminuria and GFR changes in adult women. Novel non-invasive markers are required for early detection of Fabry nephropathy.


Subject(s)
Fabry Disease/genetics , Mutation, Missense/genetics , Renal Dialysis , alpha-Galactosidase/genetics , Adult , Albuminuria/epidemiology , Albuminuria/genetics , Fabry Disease/pathology , Female , Genetic Testing , Glomerular Filtration Rate , Heart Diseases/etiology , Heart Diseases/genetics , Humans , Kidney/pathology , Male , Mass Screening , Middle Aged , Nephritis, Interstitial/genetics , Nephritis, Interstitial/pathology , Nervous System Diseases/etiology , Nervous System Diseases/genetics , Pedigree , Sex Characteristics , White Matter/pathology
3.
J. bras. nefrol ; 39(4): 473-476, Oct.-Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-893788

ABSTRACT

ABSTRACT Introduction: Granulomatous interstitial nephritis is a rare condition, in which renal involvement is uncommon. Its etiology is variable, and may be medicinal, infectious or inflammatory origin. Case report: This is a 65-year-old male patient with renal lesions of unknown etiology, associated with hypercalcaemia. During the investigation, cardiac insufficiency with diastolic dysfunction and interstitial lung involvement on chest tomography were evidenced. Renal function (glomerular filtration rate) has partially improved with clinical measures. Renal biopsy was performed, which showed moderate interstitial lesion with tuberculoid granulomas without caseous necrosis. Conclusion: The objective of the article was to describe a case of NIG and to alert to the importance of its clinical investigation. In this case, renal biopsy, associated with systemic clinical manifestations, contributed to the diagnosis of sarcoidosis.


RESUMO Introdução: a nefrite intersticial granulomatosa é uma condição rara, na qual o envolvimento renal é incomum. Sua etiologia é variável e pode ter origem medicinal, infecciosa ou inflamatória. Relato de caso: trata-se de um paciente do sexo masculino, com 65 anos de idade, com lesões renais de etiologia desconhecida, associadas à hipercalcemia. Durante a investigação, evidenciaram-se insuficiência cardíaca com disfunção diastólica e envolvimento pulmonar intersticial à tomografia torácica. A função renal (taxa de filtração glomerular) melhorou parcialmente com medidas clínicas. Foi realizada biópsia renal, que apresentou lesão intersticial moderada com granulomas tuberculoides sem necrose caseosa. Conclusão: o objetivo do artigo foi descrever um caso de GIN e alertar para a importância de sua investigação clínica. Neste caso, a biópsia renal, associada a manifestações clínicas sistêmicas, contribuiu para o diagnóstico de sarcoidose.


Subject(s)
Humans , Male , Aged , Sarcoidosis/complications , Granuloma/etiology , Nephritis, Interstitial/etiology , Kidney Diseases/complications
4.
J Bras Nefrol ; 39(4): 473-476, 2017.
Article in English, Portuguese | MEDLINE | ID: mdl-29319778

ABSTRACT

INTRODUCTION: Granulomatous interstitial nephritis is a rare condition, in which renal involvement is uncommon. Its etiology is variable, and may be medicinal, infectious or inflammatory origin. CASE REPORT: This is a 65-year-old male patient with renal lesions of unknown etiology, associated with hypercalcaemia. During the investigation, cardiac insufficiency with diastolic dysfunction and interstitial lung involvement on chest tomography were evidenced. Renal function (glomerular filtration rate) has partially improved with clinical measures. Renal biopsy was performed, which showed moderate interstitial lesion with tuberculoid granulomas without caseous necrosis. CONCLUSION: The objective of the article was to describe a case of NIG and to alert to the importance of its clinical investigation. In this case, renal biopsy, associated with systemic clinical manifestations, contributed to the diagnosis of sarcoidosis.


Subject(s)
Granuloma/etiology , Nephritis, Interstitial/etiology , Sarcoidosis/complications , Aged , Humans , Kidney Diseases/complications , Male
5.
Transpl Int ; 23(5): 493-9, 2010 May 01.
Article in English | MEDLINE | ID: mdl-19929858

ABSTRACT

Renal transplant patients with stable graft function and proximal tubular dysfunction (PTD) have an increased risk for chronic allograft nephropathy (CAN). In this study, we investigated the histologic pattern associated with PTD and its correlation with graft outcome. Forty-nine transplant patients with stable graft function were submitted to a biopsy. Simultaneously, urinary retinol-binding protein (uRBP) was measured and creatinine clearance was also determined. Banff's score and semi-quantitative histologic analyses were performed to assess tubulointerstitial alterations. Patients were followed for 24.0 + or - 7.8 months. At biopsy time, mean serum creatinine was 1.43 + or - 0.33 mg/dl. Twelve patients (24.5%) had uRBP > or = 1 mg/l, indicating PTD and 67% of biopsies had some degree of tubulointerstitial injury. At the end of the study period, 18 (36.7%) patients had lost renal function. uRBP levels were not associated with morphologic findings of interstitial fibrosis and tubular atrophy (IF/TA), interstitial fibrosis measured by Sirius red or tubulointerstitial damage. However, in multivariate analysis, the only variable associated with the loss of renal function was uRBP level > or = 1 mg/l, determining a risk of 5.290 of loss of renal function (P = 0.003). Renal transplant patients who present PTD have functional alteration, which is not associated with morphologic alteration. This functional alteration is associated to progressive decrease in renal function.


Subject(s)
Kidney Transplantation/methods , Kidney Tubules/pathology , Transplantation, Homologous/methods , Adult , Biopsy , Female , Fibrosis , Graft Survival , Humans , Kidney/metabolism , Male , Middle Aged , Prognosis , Retinol-Binding Proteins, Cellular/metabolism , Treatment Outcome
6.
Nephrol Dial Transplant ; 25(2): 490-6, 2010 Feb.
Article in English | MEDLINE | ID: mdl-19633091

ABSTRACT

BACKGROUND: Studies about the prevalence of renal and particularly glomerular diseases in Brazil are still scarce. METHODS: We evaluated retrospectively the reports of 9,617 renal biopsies, analyzed by the same pathologist, from January 1993 to December 2007. RESULTS: The 9,617 renal biopsies performed in subjects of all ages in native kidneys. 4,619 were primary glomerulopathies (GN), the most frequent was focal segmental glomerulosclerosis (FSGS, 24.6%), followed by membranous nephropathy (MN, 20.7%), IgA nephropathy (IgAN, 20.1%), minimal change disease (MCD, 15.5%), mesangioproliferative non IgAN (nonIgAN, 5.2%), diffuse proliferative GN (DPGN, 4.7%) and membranoproliferative GN (MPGN, 4.2%). Lupus nephritis was responsible for most cases which etiology was determined, i.e., 950 out of 2,046 cases (45.5%), followed by post infectious GN (18.9%), diabetic nephropathy (8.5%), benign and malignant nephroangiosclerosis (7.3%), haemolytic-uraemic syndrome and thrombotic thrombocytopenic purpura (HUS/TTP), amyloidosis (4.8%) and vasculitis (4.7%). There was a predominance of secondary GN in the North, mostly due to lupus nephritis (LN); FSGS was very common in Northeast (27.7%), Central (26.9%) and Southeast regions (24.1%); IgAN was most frequent in South (22.8%) and MN in North (29.6%); the total prevalence of MPGN was low, and its regional distribution has not changed along the years. CONCLUSION: FSGS was the most frequent primary glomerular disease, followed closely by MN and IgAN. The predominance of FSGS is in accordance with recent studies all over the world that revealed its frequency is increasing. Lupus nephritis predominated among secondary GN in most regions, a finding observed in other studies.


Subject(s)
Kidney Diseases/epidemiology , Kidney Diseases/pathology , Kidney/pathology , Adolescent , Adult , Biopsy/statistics & numerical data , Brazil , Child , Child, Preschool , Female , Humans , Infant , Male , Middle Aged , Retrospective Studies , Young Adult
7.
J. Health Sci. Inst ; 25(2): 179-185, abr.-jun. 2007. ilus, graf
Article in Portuguese | LILACS, BBO - Dentistry | ID: biblio-873705

ABSTRACT

Introdução - O ensino da cefalometria nas faculdades de Odontologia baseia-se em livros-texto que não abrangem completamente seu conteúdo, dificultando a aprendizagem. Por outro lado a utilização de programas educacionais com conteúdo multimídia pode auxiliar o estudo individual. Construir e avaliar o impacto da multimídia como ferramenta de auxílio no aprendizado da análise cefalométrica em um curso de graduação em Odontologia. Materiais e Métodos - Na Universidade Federal de São Paulo (Unifesp) foi desenvolvido, no período 2005-2006, um programa educacional multimídia contendo tópicos de estudo sobre cefalometria, incluindo exercícios práticos de elaboração e análise. Em parceria com a Universidade Paulista (UNIP), alunos do 3º ano do curso de Odontologia, sem conhecimento prévio sobre cefalometria, foram divididos em grupo G1, com alunos que participaram de uma aula tradicional sobre o tema, e grupo G2, com alunos que estudaram com apoio do programa. Aplicamos uma prova com 14 questões descritivas para medir a retenção do conhecimento, 60 minutos após a realização das atividades. Resultados - A média de acertos de G1 foi 10,31 questões corretas (73,61%); grupo G2 obteve média de 10,91 questões corretas (78,30%). A análise estatística indica que os resultados são equivalentes, com leve superioridade de G2. Por meio da análise qualitativa observamos maior motivação dos alunos em relação à aula presencial. Contudo, os estudantes destacaram que a aula multimídia é melhor para a visualização das estruturas da cefalometria. Conclusão - O programa educacional multimídia desenvolvido oferece um instrumento eficiente para auxiliar no estudo da cefalometria


Subject(s)
Cephalometry , Education, Dental , Multimedia , Data Interpretation, Statistical , Computer-Assisted Instruction , Software Validation
8.
Am J Transplant ; 5(2): 323-9, 2005 Feb.
Article in English | MEDLINE | ID: mdl-15643992

ABSTRACT

Accumulated oxalate will be excreted after renal transplantation, creating an increased risk of tubular precipitation, especially in the presence of allograft dysfunction. We evaluated calcium oxalate (CaOx) deposition in renal allograft biopsies with early dysfunction, its association with acute tubular necrosis (ATN) and graft survival. We studied 97 renal transplant patients, submitted to a graft biopsy within 3 months post-transplant, and reanalyzed them after 10 years. We analyzed renal tissue under polarized light and quantified CaOx deposits. CaOx deposits were detected in 52.6% of the patients; 26.8% were of mild and 25.8% of moderate intensity. The deposits were more frequent in biopsies performed within 3 weeks post-transplant (82.4 vs. 63.0%, p < 0.05) and in allografts with more severe renal dysfunction (creatinine 5.6 mg/dL vs. 3.4 mg/dL, p < 0.001). ATN incidence was also higher in patients with CaOx deposits (47% vs. 24%, p < 0.001). Twelve-year graft survival was strikingly worse in patients with CaOx deposits compared to those free of deposits (49.7 vs. 74.1%, p = 0.013). Our study shows a high incidence of CaOx deposits in kidney allografts with early dysfunction, implying an additional risk for acute tubular injury, with a negative impact on graft survival.


Subject(s)
Calcium Oxalate/metabolism , Graft Survival/physiology , Kidney Transplantation , Kidney/metabolism , Adolescent , Adult , Child , Female , Humans , Male , Middle Aged , Survival , Time Factors
9.
Femina ; 32(10): 865-869, nov.-dez. 2004. ilus
Article in Portuguese | LILACS | ID: lil-403073

ABSTRACT

A Importância das alterações glomerulares na pré-eclâmpsia é indiscutível e seu estudo possui evolução histórica. A primeira e mais significativa lesão descrita foi a endoteliose capilar glomerular, relatada a princípio como sendo patognomônica da doença. Entretanto com a realização mais freqüente de biópsias renais foi possível a identificação dessa lesão em outras patologias e até mesmo em gestantes normais, o que implicou nos dias atuais no abandono do termo patognomônica. Além disso, outras alterações bem como suas relações com graus variáveis da doença foram identificadas. Uma das mais importantes é a glomeruloesclerose segmentar focal, que se relaciona com casos mais graves de pré-eclâmpsia e demora no retorno à normalidade após o parto. O estudo das alterações glomerulares serviu ainda para mostrar aspectos comuns entre pré-eclâmpsia e doenças de origem imunológica, o que fortalece a teoria de estar essa também relacionada à ativação do sistema imune


Subject(s)
Humans , Female , Glomerulosclerosis, Focal Segmental , Immune System , Pre-Eclampsia , Biopsy , Glomerulonephritis
10.
J. bras. nefrol ; 25(2): 108-111, jun. 2003. ilus
Article in Portuguese | LILACS | ID: lil-364828

ABSTRACT

O hiperparatireoidismo secundário é uma complicação freqüente da insuficiência renal crônica. Tumor marrom ou osteociastoma é urna forma de apresentação focal da osteíte fibrosa, acometendo principalmente mãos, pés, crânio, ossos da face e Mandíbula. Acometimentos da coluna vertebral levando a manifestações neurológicas são raros. O objetivo deste artigo é relatar um caso de tumor marrom em paciente do sexo feminino, 29 anos, renal crônica em hemodiálise portadora de hiperparatireoidismo secundário severo, com quadro de paraplegia crural. Ressonância nuclear magnética evidenciou processo expansivo sólido na região posterior da quarta vértebra toráci'ca, com compressão do canal medular. Submetida a laminectomia posterior, com retirada do tumor. Biópsia evidenciou tumor marrom. A incidência do tumor marrom no hiperparatireoidismo secundário apresenta-se em torno de 1,5 por cento a 1,7por cento. Existem descritos poucos casos de acometimento da coluna vertebral por tumor marrom em pacientes renais crônicos levando a compressão medular, sendo cinco os que acometeram a coluna torácica e um a coluna cervical. A melhor abordagem terapêutica nesses casos ainda não está bem definida. A literatura tem demonstrado como melhor opção a descompressão cirúrgica, principalmente quando as manifestações neurológicas compressivas são graves.


Subject(s)
Humans , Female , Adult , Spinal Cord Compression/etiology , Hyperparathyroidism, Secondary/complications , Hyperparathyroidism, Secondary/physiopathology , Renal Insufficiency, Chronic/complications
11.
São Paulo med. j ; 115(4): 1475-84, jul.-ago. 1997. ilus, tab
Article in English | LILACS | ID: lil-208785

ABSTRACT

Objective: The ligation of the left renal vein (LLVR) in man is a contraversial procedure in view of the risks of lesion to the renal parenchyma. With the objective of studying the morphologic and functional alterations caused by these lesions, we conducted experimental research with rats. Material and Methods: 64 male adult EPM1-WISTAR rats were used, divided into 8 groups - 4 for LLRV and four control. Each LLRV group and corresponding control group were sacrificed progressively on the 7th, 15th, 30th and 60th day after the initial surgery. Results: We found morphofunctional alterations only in animals that underwent LLRV in the four periods of sacrifice. The proteinuria creatinine in serum, testosterone in serum and serum corticosterone in serum showed practically no alteration in relation to the normal values for rats. Statistically significant severe histological lesions were found in the kidneys and testes of the LLRV groups. Lesions in the suprarenal glands were also present in these groups, but no sufficient to demonstrate statistical significance Conclusion: Based on these results we can conclude that the ligation of the left renal vein is a procedure of high risk in these animals.


Subject(s)
Animals , Male , Rats , Renal Veins/surgery , Testis/physiopathology , Adrenal Glands/physiopathology , Kidney/physiopathology , Organ Size , Proteinuria/urine , Testis/pathology , Testosterone/blood , Corticosterone/blood , Rats, Wistar , Adrenal Glands/pathology , Creatinine/blood , Kidney/pathology , Ligation
12.
J. bras. nefrol ; 13(3): 99-104, set. 1991. tab
Article in Portuguese | LILACS | ID: lil-115484

ABSTRACT

Este trabalho tem como objetivo avaliar o efeito dos diuréticos tiazídicos e/ou citrato de potássio no crescimento de cálculos induzidos experimentalmente em ratos com cristais de oxalato de cálcio na bexiga. Foram utilizados ratos Wistar, machos, com peso entre 250 e 300g, alimentados com dieta padräo e com acesso livre a água. O protocolo, com duraçäo de 42 dias, constou de duas fases: inicial (cirurgia para introduçäo de corpo estranho na bexiga) e final (cirurgia com retirada dos cálculos), durante as quais foram coletadas as urinas de 24h para dosagens bioquímicas (creatinina, cálcio, ácido úrico, fósforo, sódio e potássio); na fase final, foram incluídas dosagens plasmáticas (creatinina, cálcio e ácido úrico). Os grupos foram dividios de acordo com a droga utilizada; G1, controle normal; G2, SHAM (cirurgia sem corpo estranho); G3, oxalato de cálcio-OxCa (animais com cálculos näo tratados); G4, hidroclorotiazida-HCTZ (dose 5mg/Kg/dia, v.o.); G5, clortalidona-CLOR (dose 5mg/Kg/dia, v.o.); G6, amilorida + hidroclorotiazida-AML + HCTZ (dose de 0,4mg/2,0mg/Kg/dia, respectivamente, v.o.); G7, citrato de potássio-CIT.K (na dose de 3mEq/Kg/dia, v.o); G8, CIT.K + HCTZ (dose de 3mEq/5mg/Kg/dia, respectivamente, v.o.). Observamos variabilidade de resultados com relaçäo às dosagens bioquímicas, o que dificultou as análises desses parâmetros. O ritmo do crescimento dos cálculos foi menor nos grupos tratados , com exceçäo do grupo CLOR, quando comparado com o grupo OxCa, sendo significante (p < 0,05) as diferenças entre o OxCa e o grupo CIT.K (X = 19,6 vs 5,7). O aparecimento de cálculos satélites foi menor nos grupos tratados, porém sem diferenças significantes. Esses dados sugerem que o citrato de potássio foi eficiente em diminuir o ritmo de crescimento dos cálculos pré-formados em ratos, provavelmente devido ao seu tipo de açäo (inibiçäo da cristalizaçäo


Subject(s)
Animals , Male , Rats , Urinary Calculi/drug therapy , Citrates/therapeutic use , Sodium Chloride Symporter Inhibitors/therapeutic use , Rats, Inbred Strains , Urine/chemistry
14.
Acta cir. bras ; 5(2): 71-4, abr.-maio 1990. ilus
Article in Portuguese | LILACS | ID: lil-92347

ABSTRACT

Submetemos 12 cäes a laparotomias medianas anterior e posterior à cicatriz umbilical e, no fechamento das incisöes, no mesmo cäo, altenamos a sutura ou näo do peritônio, mantendo cada cäo como controle de si próprio. Após 10 dias notamos que houve fechamento peritoneal completo em todos os animais, com ou sem sutura peritoneal. em cinco cäes havia aderências somente na incisäo em que o peritônio näo havia sido suturado. A análise estatística mostrou ser significante a maior presença de aderências nos casos em que o peritônio näo havia sido suturado


Subject(s)
Dogs , Animals , Abdomen/surgery , Peritoneum/surgery , Sutures/adverse effects , Cicatrix , Laparotomy , Tissue Adhesions
15.
Rev. imagem ; 11(3): 111-4, jul.-set. 1989. tab
Article in Portuguese | LILACS | ID: lil-100866

ABSTRACT

Näo obstante ser a amiloidose uma entidade de graves conseqüências clínicas quando verifica-se acometimento renal, a literatura näo registra nenhum trabalho dirigido espcificamente à avaliaçäo ultra-sonográfica desta condiçäo. Este é o objetivo do presente estudo, em que foram avaliados seis pacientes com acometimento renal histologicamente comprovado, correlacionando os aspectos ultra-sonográficos com os achados histopatológicos. Os depósitos da substância amilóide (nos glomérulos, túbulos, vasos e interstício) foram quantificados e observou-se nítida correlaçäo entre o volume do depósito e a ecogenicidade do parênquima renal. As alteraçöes ultra-sonográficas encontradas - aumento inespecífico da ecogenicidade parenquimatosa com prevençäo da diferenciaçäo córtico-medular, regularidade dos contornos renais e modificaçöes (aumento ou diminuiçäo) nas dimensöes do órgäo -, embora näo específicas (säo semelhantes às evidenciadas em outras doenças parequimatosas renais), podem sugerir o acometimento renal em pacientes com amilidose


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Amyloidosis , Kidney Diseases , Amyloidosis/pathology , Kidney Diseases/pathology
16.
Acta cir. bras ; 4(2): 56-60, abr.-jun. 1989. ilus, tab
Article in Portuguese | LILACS | ID: lil-75080

ABSTRACT

O objetivo foi avaliar a reparaçäo tecidual das feridas cutâneas de ratos após irradiaçäo com o Laser de Hélio-Neônio (He-Ne). Utilizamos 18 ratos machos, da linhagem Wistar. Dividimos os animais em 3 grupos de 6 animais: G1, G2, G3. Realizamos, em cada animal, duas feridas circulares de 1 cm na regiäo dorsal, sendo uma irradiada com o Laser de He-Ne na dose diária de 2,7 Joules/10 minutos, e a outra observada como controle. No 7§, 14§ e 21 dias as feridas foram analisadas quanto aos aspectos morfológicos e histométricos. Os resultados obtidos mostraram uma epitelizaçäo e contraçäo mais precoce das feridas irradiadas. A proporçäo de fibras colágenas foi maior nas feridas irradiadas nas 3 fases estudadas. A proporçäo de fibroblastos foi maior no grupo irradiadas nas 3 fases estudadas. A proporçäo de fibroblastos foi maior no grupo irradiado apenas no 7§ P. O. Concluímos que o processo de reparaçäo evoluiu de forma mais rápida nas feridas irradiadas em relaçäo ao controle


Subject(s)
Rats , Animals , Male , Wound Healing/radiation effects , Lasers/therapeutic use , Collagen/metabolism , Fibroblasts/ultrastructure , Skin/pathology , Granulation Tissue/physiology
18.
Folha méd ; 96(1/2): 35-8, jan.-fev. 1988. ilus
Article in Portuguese | LILACS | ID: lil-53498

ABSTRACT

É apresentada uma revisäo da literatura sobre tumor glômico, na qual säo abordados os aspectos anatomopatológicos. A estrutura do glomus normal é estudada e cortes histológicos com características típicas de tumor glômico säo apresentados


Subject(s)
Humans , Monoamine Oxidase/pathology , Skin Neoplasms/pathology , Foot/pathology
19.
Folha méd ; 95(4): 221-3, out. 1987. tab
Article in Portuguese | LILACS | ID: lil-47122

ABSTRACT

É destacado o papel da biópsia endomiocárdica no diagnóstico precoce de miocardites e da toxicidade por adriamicina. Säo apresentados a técnica utilizada e os resultados obtidos em 28 pacientes


Subject(s)
Child, Preschool , Child , Adolescent , Adult , Middle Aged , Humans , Male , Female , Biopsy, Needle/methods , Myocarditis/pathology , Myocardium/pathology , Doxorubicin/administration & dosage
20.
Acta cir. bras ; 2(2): 51-4, abr.-jun. 1987. ilus
Article in Portuguese | LILACS | ID: lil-42042

ABSTRACT

A paniculite mesentérica é uma patologia rara, de etiologia e patogenia ainda ignoradas. Relata-se um caso desta patologia salientando, e concordando com a literatura, a dificuldade diagnóstica pré e intraoperatória sendo a presença do tumor abdominal um dado clínico importante para o diagnóstico. O quadro anátomopatológico é característico com a presença dos lipófagos e a ausência de processo inflamatório. Quanto ao tratamento este permanece obscuro, visto que as doença apresenta uma evoluçäo invariavelmente benígna com ou sem tratamento complementar


Subject(s)
Middle Aged , Humans , Female , Panniculitis, Nodular Nonsuppurative/surgery
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