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1.
Arq. gastroenterol ; 45(4): 301-307, out.-dez. 2008. ilus, tab
Article in Portuguese | LILACS | ID: lil-502140

ABSTRACT

RACIONAL: A colonografia tomográfica computadorizada tem sido proposta como teste substituto da colonoscopia para o diagnóstico de pólipos colorretais em programas de rastreamento de câncer de intestino grosso. OBJETIVO: Avaliar o desempenho da colonografia tomográfica computadorizada na detecção de pólipos colorretais, considerando a colonoscopia como padrão-ouro. MÉTODOS: Foram estudados 20 pacientes com alto risco para neoplasia colorretal (14 homens e 6 mulheres com idades médias de 55 e 59 anos, respectivamente). A colonografia tomográfica computadorizada foi realizada até 3 horas antes da colonoscopia. Um cateter com balão foi introduzido no reto com insuflação dos cólons e do reto com ar ambiente até que fosse obtida distensão satisfatória dos mesmos. Para otimizar a distensão colônica, minimizar artefatos decorrentes da peristalse e diminuir o espasmo, foram administrados 20 mg de hioscina intravenosa imediatamente antes do exame radiológico. RESULTADOS: A imagem radiológica do cólon foi considerada de qualidade satisfatória em todos os casos. A colonoscopia detectou o total de 85 pólipos em 19 dos 20 pacientes (95 por cento). Todos os pólipos observados foram removidos e encaminhados para exame anatomopatológico. A colonografia tomográfica computadorizada identificou 8 dos 10 pólipos com diâmetros > 10 mm (80 por cento), 2 dos 19 com diâmetro entre 5 e 9 mm (18,2 por cento), e apenas 1 dos 53 <5 mm (9,1 por cento). Dos 43 pólipos adenomatosos, 17 eram > 5 mm. Destes, 8 (47 por cento) foram corretamente identificados pela colonografia tomográfica computadorizada. Nenhuma das neoplasias com diâmetros <5mm foi observada no exame radiológico. Dezenove dos 20 pacientes (95 por cento) submetidos a ambos os testes prefeririam submeter-se a nova colonoscopia, ao invés de uma colonografia tomográfica computadorizada, na eventualidade hipotética de ser necessário repetir um dos dois testes. CONCLUSÃO: Para pacientes com risco aumentado...


BACKGROUND: Computed tomographic colonography has been proposed for detection of colorectal polyps instead of colonoscopy in colorectal cancer screening programs. AIM: To evaluate the performance of computed tomographic colonography in the detection of colorectal polyps with colonoscopy used as the gold standard. METHODS: We prospectively studied 20 patients at high risk for colorectal neoplasia (14 men and 6 women; mean age, 55 years and 59 years). Computed tomographic colonography was performed immediately before colonoscopy. We inserted a rectal balloon catheter and insufflated the colon with room air to the level that a good distension was observed. Twenty milligrams of hioscin was given immediately before computed tomographic imaging of the abdomen and pelvis in order to minimize the degree of smooth-muscle spasm and peristalsis and to reduce the patient's discomfort. RESULTS: Computed tomographic colonography images were considered satisfactory in all cases. Colonoscopy detected 85 polyps in 19 of 20 patients (95 percent). All the observed polyps were successfully removed and examined histologically. The radiological examination correctly identified 8 of 10 polyps 10 mm or more in diameter, 2 of 19 (18,2 percent) with 5-9 mm, and just 1 of 53 <5mm (9,1 percent). Seventeen of the 43 adenomatous polyps were > 5 mm. Eight (47 percent) were correctly identified on computed tomographic colonography. None of the neoplasias <5 mm were identified on colonography. Nineteen patients preferred colonoscopy in the event of having to repeat on of the two examinations. CONCLUSION: For the detection of colorectal polyps, computed tomographic colonography seems to be useful only when the result is positive, as the negative results of this examination cannot eliminate the presence of these lesions.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Colonic Neoplasms , Colonic Polyps , Colonography, Computed Tomographic/standards , Colonoscopy/standards , Rectal Neoplasms , Adenomatous Polyps , Colonic Polyps/classification , Prospective Studies , Rectal Neoplasms/pathology , Sensitivity and Specificity
2.
Rev. bras. colo-proctol ; 28(1): 62-71, jan.-mar. 2008. graf, tab
Article in Portuguese | LILACS | ID: lil-482433

ABSTRACT

OBJETIVO: Avaliar a sobrevida e fatores clínico-patológicos relacionados ao adenocarcinoma de reto. METODOLOGIA: Foram revisados 112 prontuários de pacientes com adenocarcinoma de reto quanto a: idade, sexo, antígeno carcino-embriônico, curabilidade da cirurgia, seguimento, recidiva, sobrevida e histopatologia do tumor. Para análise da sobrevida, utilizou-se o método de Kaplan-Meyer. Nas análises bivariada e estratificada, P <0,05 foi significativo. No modelo multivariado, utilizou-se um IC de 90 por cento. RESULTADOS: O seguimento mediano foi de 35,27 meses (14,5 - 57,63). A sobrevida em 5 anos foi de 51 por cento. Sessenta e quatro pacientes (57 por cento) apresentaram recidiva; 45 (40 por cento) faleceram da neoplasia; 68 por cento dos tumores estendiam-se até os tecidos perirretais; e 67 pacientes tinham linfonodos positivos (30 por cento em cada, N1 e N2). Quatorze pacientes eram estágio D; 55, C1 e C2; 15, B2; e 28, B1 e A. O risco de óbito aumentou entre os casos com: estágios avançados, tumores mais invasivos e menos diferenciados, envolvimento linfonodal (N2>N1) e recidiva. A classificação de Dukes e a diferenciação tumoral foram fatores prognósticos independentes, bem como a penetração do tumor na parede retal e o comprometimento linfonodal, quando excluída a classificação histopatológica. CONCLUSÃO: Além da diferenciação tumoral, os fatores prognósticos identificados correspondem aos níveis dos sistemas de estadiamento vigentes.


The objective of this study was to evaluate survival and clinicopathological factors in rectal adenocarcinoma, the records of 112 patients were reviewed for: age, gender, serum level of CEA, surgery curability, follow-up, recurrence, survival and tumor histopathology. Kaplan-Meyer curves were used to analyze survival. Statistical significance in bivariate and stratified analysis was set at P < 0.05. In the multivariate model, a 90 percent confidence interval was considered significant. Median follow-up was 35 (14 - 57) months. Five-year survival rate was 51 percent. Sixty-four patients (57 percent) had recurrence; 45 (40 percent) died from neoplasia, 68 percent tumors extended to perirectal tissues and 67 had positive lymph nodes (30 percent each, N1 and N2). Fourteen patients were Dukes D stage; 55 were C1 and C2; 15 were B2; and 28 were B1 and A. Death increased significantly with tumor progression stages (P<0.001), tumor depth (P=0.013) and grade (P=0.009), lymph node involvement (N2>N1, P<0.001) and recurrence (P<0.001). Independent prognostic factors were Dukes stages and tumor grade (P=0.089), as well as depth of invasion and lymph node involvement when Dukes staging was excluded (P=0.091 and <0.001). Besides tumor grade, the prognostic factors identified meet classification levels in current staging systems.


Subject(s)
Humans , Adenocarcinoma , Colorectal Neoplasms , Recurrence , Survival
3.
Arq Gastroenterol ; 45(4): 301-7, 2008.
Article in Portuguese | MEDLINE | ID: mdl-19148358

ABSTRACT

BACKGROUND: Computed tomographic colonography has been proposed for detection of colorectal polyps instead of colonoscopy in colorectal cancer screening programs. AIM: To evaluate the performance of computed tomographic colonography in the detection of colorectal polyps with colonoscopy used as the gold standard. METHODS: We prospectively studied 20 patients at high risk for colorectal neoplasia (14 men and 6 women; mean age, 55 years and 59 years). Computed tomographic colonography was performed immediately before colonoscopy. We inserted a rectal balloon catheter and insufflated the colon with room air to the level that a good distension was observed. Twenty milligrams of hioscin was given immediately before computed tomographic imaging of the abdomen and pelvis in order to minimize the degree of smooth-muscle spasm and peristalsis and to reduce the patient's discomfort. RESULTS: Computed tomographic colonography images were considered satisfactory in all cases. Colonoscopy detected 85 polyps in 19 of 20 patients (95%). All the observed polyps were successfully removed and examined histologically. The radiological examination correctly identified 8 of 10 polyps 10 mm or more in diameter, 2 of 19 (18,2%) with 5-9 mm, and just 1 of 53 <5mm (9,1%). Seventeen of the 43 adenomatous polyps were > or =5 mm. Eight (47%) were correctly identified on computed tomographic colonography. None of the neoplasias <5 mm were identified on colonography. Nineteen patients preferred colonoscopy in the event of having to repeat on of the two examinations. CONCLUSION: For the detection of colorectal polyps, computed tomographic colonography seems to be useful only when the result is positive, as the negative results of this examination cannot eliminate the presence of these lesions.


Subject(s)
Colonic Neoplasms/diagnostic imaging , Colonic Polyps/diagnostic imaging , Colonography, Computed Tomographic/standards , Colonoscopy/standards , Rectal Neoplasms/diagnostic imaging , Adenomatous Polyps/diagnostic imaging , Adult , Aged , Colonic Polyps/classification , Female , Humans , Male , Middle Aged , Prospective Studies , Rectal Neoplasms/pathology , Sensitivity and Specificity
4.
Dis Colon Rectum ; 46(8): 1032-7, 2003 Aug.
Article in English | MEDLINE | ID: mdl-12907896

ABSTRACT

PURPOSE: This study was conducted to assess the feasibility of the sentinel lymph node procedure in patients with epidermoid carcinoma of the anal canal. METHODS: Between February 2001 and November 2002, 14 patients with epidermoid carcinoma of the anal canal and no clinical evidence of inguinal involvement were prospectively enrolled in the study. The sentinel lymph node procedure consisted of a combination of preoperative lymphoscintigraphy with technetium 99m dextran 500 injected around the tumor and intraoperative detection of the sentinel node with a gamma probe. Patent blue V dye was also injected at the periphery of the tumor to facilitate direct identification of the blue-stained lymph node. After removal, the sentinel node was studied by hematoxylin and eosin staining and immunohistochemistry for pancytokeratins (antigen A1 and A3). RESULTS: Detection and removal of sentinel lymph nodes was possible in all patients. There was no correlation between tumor size and pattern of lymphatic drainage to the groin. Tumors located in the midline of the anal canal gave rise to bilateral sentinel nodes in eight of nine cases. In total, 23 sentinel lymph nodes were removed. One patient (7.1 percent) had a node identified as positive for metastatic carcinoma on immunohistochemical staining. Surgical complications were minimal. CONCLUSIONS: The standardized technique was safe and highly effective in sampling inguinal sentinel lymph nodes in carcinoma of the anal canal. It also proved to be useful as an instrument to detect micrometastatic deposits in clinically normal nodes. Our early results suggest the sentinel lymph node procedure may have a role in guiding a more selective approach for patients with anal cancer. Additional studies in a larger patient population to determine the sensitivity and specificity of this method are warranted.


Subject(s)
Anus Neoplasms/pathology , Carcinoma, Squamous Cell/pathology , Sentinel Lymph Node Biopsy/methods , Aged , Antigens, Neoplasm/analysis , Anus Neoplasms/diagnostic imaging , Carcinoma, Squamous Cell/diagnostic imaging , Feasibility Studies , Female , Humans , Immunohistochemistry , Keratins/analysis , Male , Middle Aged , Prospective Studies , Radionuclide Imaging
5.
Int J Colorectal Dis ; 17(1): 42-5, 2002 Jan.
Article in English | MEDLINE | ID: mdl-12018453

ABSTRACT

BACKGROUND AND AIM: Von Willebrand factor (vWF) is a protein that mediates adherence of platelets to subendothelium during primary hemostasis. High vWF plasma concentrations have been reported in patients with various types of cancer, such as squamous cell carcinoma of the larynx and the cervix. This effect is associated with tumor-related angiogenesis and the metastatic process. The aim of this study was to determine plasma levels of vWF in a series of patients with colorectal carcinoma and the correlation of these values with specific prognostic predictors for the disease. PATIENTS AND METHODS: vWF was measured by quantitative immunoelectrophoresis in 75 patients with colorectal carcinoma at various Dukes' stages and compared with results from 88 healthy controls. RESULTS: Cancer patients had significantly higher vWF concentrations than controls. vWF plasma levels were associated with tumor staging, invasion of adjacent organs by the tumor, and presence of distant metastases. There was no significant correlation between vWF values and tumor size, histological grading, or plasma carcinoembryonic antigen levels. CONCLUSIONS: The levels of vWF are elevated in patients with colorectal cancer, and these values tend to increase with tumor progression. Considering that vWF is related to the process of tumor angiogenesis and may contribute to metastatic dissemination of malignant cells, further studies of its potential role as a marker of tumor progression in patients with colorectal cancer are warranted. It should be pointed out, however, that these observations need to be substantiated with additional studies using other methods and, preferably, the determination of vWF levels synthesized in the tumor tissues.


Subject(s)
Colorectal Neoplasms/blood , von Willebrand Factor/metabolism , Case-Control Studies , Female , Humans , Immunoelectrophoresis , Male , Middle Aged , Prognosis
6.
J Cutan Med Surg ; 6(1): 26-8, 2002.
Article in English | MEDLINE | ID: mdl-11896421

ABSTRACT

BACKGROUND: A case of basal cell carcinoma (BCC) of the perianal region is reported. This tumor is extremely rare in this location and behaves rather innocently. OBJECTIVE: Clinical and histopathologic characteristics of perianal BCC, as well as the choices of treatment, are outlined. CONCLUSION: The tumor should be histologically distinguished from basaloid carcinoma of the anus, which is much more aggressive and metastasizes early, thus requiring a different therapy.


Subject(s)
Anus Neoplasms/pathology , Carcinoma, Basal Cell/pathology , Aged , Female , Humans
7.
Rev. bras. colo-proctol ; 21(4): 219-227, out.-dez. 2001. graf
Article in Portuguese | LILACS | ID: lil-304911

ABSTRACT

A procura de alternativas no tratamento da colite ulcerativa tem sido estimulada em funçäo das falhas das terapias convencionais e dos avanços no entendimento dos múltiplos mecanismos que envolvem a sua etiopatogenia.Objetivo: verificar a eficácia de enemas de ciclosporina (CyA) no tratamento da colite ulcerativa induzida experimentalmente por ácido acético em ratos e, secundariamente, desenvolver um modelo experimental de colite induzida em nossa Instituiçäo.Material e métodos: realizou-se um ensaio clínico, randomizado, unicego, controlado por placebo utilizando-se 55 ratos (Wistar) divididos em 4 grupos: A (n=15, induçäo com ácido acético 7 por cento), B (n=16), induçäo com ácido acético + enemas de CyA/2,0mg/kg/6dias), C(n=9, induçäo com soluçäo fisiológica + enemas de Cya/0,5 mg/6dias) e D (n=15, induçäo com soluçäo fisiológica.Variáveis de interesse: alterações macro e microscópicas da mucosa colônica e modificações diárias no peso, ingesta alimentar e características das fezes dos animais.Resultados: durante o estudo (14 dias), sacrificaram-se exemplares de cada grupo nos dias 2, 3, 5, 7 e 14 para avaliações macro e microscópicas. Näo foram observadas alterações estatísticamente significativas das variáveis peso, ingesta alimentar e características das fezes quando se compraram os grupo A e B. A avaliaçäo macroscópica foi significativa na comparaçäo dos grupos A e B tanto no período acumulado do 2Ý ao 14Ý dia (p=0,037) como do 3Ý ao 14Ý dia (p=0,009). O índice histológico da atividade da doença (IHAD) näo mostrou diferença estatísticamente significativa quando da comparaçäo dos grupos A e B (média=1,27 vs 1,75).Conclusäo: o modelo de induçäo experimental da colite por ácido acético a 7 por cento é eficz e reprodutível; a via de administraçäo foi segura quando consideradas a ausência de alterações no peso, ingesta e características das fezes; a dose de 2,0 mg/kg/dia mostrou eficácia ao modificar positivamente as alterações macroscópicas da mucosa colônica näo sendo capaz de apresentar os mesmos resultados quando avaliados histologicamente


Subject(s)
Animals , Rats , Colitis, Ulcerative , Cyclosporine , Disease Models, Animal , Immunosuppressive Agents , Acetic Acid , Colitis, Ulcerative , Rats, Wistar
8.
Rev. bras. colo-proctol ; 20(4): 225-8, out.-dez. 2000. tab
Article in Portuguese | LILACS | ID: lil-295592

ABSTRACT

Em adiçäo aos sistemas de estadiamento clinicopatológicos comumente utilizados, fatores de risco para a recorrência no carcinoma colorretal têm sido investigados. Entre estes a quantificaçäo da angiogênese e de peptídeos angiogênicos têm demonstrado aplicaçäo clínica na avaliaçäo da sobrevida e recorrência. A angiogênese é o crescimento de novos capilares, estando associada tanto ao desenvolvimento tecidual pré e pós-natal, cicatrizaçäo e reproduçäo como em doenças inflamatórias e neoplasias. Além de permitir o crescimento tumoral, evidências experimentais demonstram que a angiogênese associa-se com o processo metastático, pois maior é a superfície vascular para o escape de células neoplásicas, o que também pode ser facilitado pela imaturidade dos novos vasos. Neste artigo de revisäo discute-se o processo de formaçäo de vasos capilares, associado ao crescimento tumoral e ao surgimento de metástases hematogênicas, bem como uma revisäo de literatura abordando angiogênese e carcinoma colorretal e o seu papel como um possível alvo terapêutico


Subject(s)
Humans , Carcinoma/physiopathology , Colorectal Neoplasms/physiopathology , Angiogenesis Inhibitors/therapeutic use , Neoplasm Metastasis/physiopathology , Neovascularization, Pathologic/physiopathology
9.
Arq. gastroenterol ; 37(2): 125-8, abr.-jun. 2000. ilus, tab
Article in Portuguese | LILACS | ID: lil-279427

ABSTRACT

The development of colonoscopy with image magnification has enable to study the colonic mucosa in detail and to do differential diagnosis between neoplastic and non-neoplastic lesions from the observation of pit patterns. The results are comparable to stereomicroscopy being possible to predict the histologic diagnosis. In a patient with familial adenomatous polyposis magnifying colonoscopy was performed and this method demonstrated a wide variation of benign polypoid lesions and the morphological features of early colorectal cancer. In this patient, the evaluation by image magnification, together with indigo carmin 0.4 per cent chromoscopy, showed a wide variety of lesions in the colon and rectum: laterally spreading tumor in the cecum, with IIIL + IV pits, subpediculate polyp in the transverse colon with approximately 2.0 cm diameter and IV + V pits, flat elevated lesions IIIL type, and in the sigmoid colon IIa + Iic lesion with V type of Kudo's classification were observed. The evaluation of pit patterns of the lesions in the transverse and sigmoid colon has enable to do the endoscopic diagnosis of the lesion with submucosal invasion


Subject(s)
Humans , Female , Adult , Colonoscopy , Adenomatous Polyposis Coli/diagnosis , Adenocarcinoma/diagnosis , Colorectal Neoplasms/diagnosis , Diagnosis, Differential , Image Enhancement , Adenomatous Polyposis Coli/surgery , Adenomatous Polyposis Coli/pathology
10.
Rev. bras. colo-proctol ; 18(4): 266-75, out.-dez. 1998. tab, graf
Article in Portuguese | LILACS | ID: lil-280944

ABSTRACT

The colorectal carcinoma is one of the most prevalent solid tumors in the word. It is the third most frequent tumor in both sexes, being preceded by lung and stomach carcinoma among men and breast and cervix carcinoma among women. In Brazil, the colorectal carcinoma is among the five more usual neoplasias, ranked fifth in mortality. In 1997, an incidence of 8980 new cases among men and 8650 new cases among women was estimated. The colorectal carcinoma has a global survival rate of 40 per cent, and a small increase has been shown in the last 40 years. The prognostic indicators in this type of cancer are the histological differentiation, the depth of invasion and the lymphatic invasion. Molecular and immunohistochemical approaches have been recently made in order to find a new prognostic indicator other than ones mentioned above. The quantitative analysis of tumor angiogenesis, defined as the growth of new capilars toward the tumor, has been shown to have clinical application in the survival and recurrence analysis. 48 patients undergoing surgery of colorectal carcinoma at The First Department of Internal Medicine, Division of Gastroenterology - Hiroshima University School of Medicine - from 1988 to 1991 were retrospectively studie. There was a significative statistical correlation between angiogenesis and the depth of tumor invasion, and it was demonstrated that the tumor spreading activity is supported by angiogenesis. A non-significative statistical association was found between the angiogenesis quantificationm, hematogenic metastasis, survival and clinical-pathological variables such as size and histological differentiation. The standardization of the immunohistochemistry and the methodology of microvascular quantification are fundamental for comparing results and using angiogenesis as a reliable prognostic indicator.


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Middle Aged , Adenocarcinoma , Colorectal Neoplasms , Neovascularization, Pathologic/metabolism , Neoplasm Invasiveness , Neoplasm Metastasis
11.
Rev. bras. colo-proctol ; 11(3): 92-4, jul.-set. 1991. tab
Article in Portuguese | LILACS | ID: lil-113088

ABSTRACT

Os autores em estudo prospectivo, apresentam os resultados do trtamento do condiloma acuminado anal com nitrogênio líquido. Foram estudados 26 pacientes submetidos a esta modalidade de tratamento, entre julho de 1989 e janeiro de 1991. Após sessöes semanais de crioterapia com uma duraçäo média de 11 semanas, 14 pacientes foram considerados curados. Näo houve seguimeto em oito, os quais abandonaram o tratamento e dois necessitaram de exérese cirúrgica. Uma paciente faleceu durante o tratamento e outro está recebendo aplicaçöes de nitrogênio no momento. Houve duas recidivas que responderam a novas aplicaçöes de nitrogênio líquido. A eficácia observada em 87,5% dos pacientes, somada aos resultados publicados na literatura, confirma a validade da crioterapia com nitrogênio líquido no tratamento do condiloma acuminado anal


Subject(s)
Adolescent , Adult , Middle Aged , Humans , Male , Female , Condylomata Acuminata/therapy , Cryosurgery/rehabilitation , Anus Neoplasms/therapy , Nitrogen/therapeutic use , Warts/surgery
12.
Rev. bras. colo-proctol ; 9(2): 60-3, abr.-jun. 1989. tab
Article in Portuguese | LILACS | ID: lil-134174

ABSTRACT

Este trabalho analisa retrospectivamente 36 pacientes que foram levados a cirurgia por apresentarem carcinoma coloretal, sendo dada atençao especial a evoluçao natural das metastases hepaticas que foram diagnosticadas nesses pacientes. A sobrevida media de todos os pacientes foi de oito meses, sendo 16 meses para os pacientes com metastase unica e cinco meses para aqueles com multiplas metastases. A avaliaçao e a escolha de qualquer terapia pode ser baseada no conhecimento da historia natural das metastases hepaticas e alerta para a necessidade de uma analise critica das taxas de sobrevida de qualquer terapia proposta.


Subject(s)
Adult , Middle Aged , Humans , Male , Female , Colonic Neoplasms/therapy , Liver Neoplasms/therapy , Neoplasm Metastasis , Rectal Neoplasms/therapy , Neoplasm Metastasis/diagnosis
13.
Article in Portuguese | LILACS | ID: lil-57412

ABSTRACT

Os pacientes com colite ulcerativa acometendo todo o cólon têm um risco maior de desenvolver carcinoma de cólon. O risco cumulativo de câncer colônico aumenta com a duraçäo da doença. Descreve-se o caso de uma paciente de 19 anos com colite ulcerativa há 9 anos, submetida à proctocolectomia. O exame patológico revelou carcinoma na válvula ileocecal e no reto. Säo discutidos alguns aspectos desta doença, enfatizando-se seu potencial maligno, bem como as características e o comportamento do câncer que compromete o cólon acometido pela colite


Subject(s)
Adult , Humans , Female , Adenocarcinoma/etiology , Colitis, Ulcerative/complications , Colonic Neoplasms/etiology , Biopsy , Precancerous Conditions , Colonic Neoplasms/pathology
14.
Article in Portuguese | LILACS | ID: lil-113775

ABSTRACT

O insucesso em se elevar a sobrevida dos pacientes com carcinoma do colon e do reto pode ser atribuida a falhas no diagnostico e tratamento. A alta morbidade e mortalidade que acompanham essa neoplasia conferem grande importancia a qualquer tentativa de se chegar a cura, a prevencao e ao diagnostico precoce. O diagnostico precoce tem sido proposto como um meio de melhorar a sobrevida dos pacientes atingidos pelo cancer do intestino grosso. A relacao entre os adenomas, a historia familiar e o surgimento do cancer e muito clara e de importancia para o diagnostico precoce


Subject(s)
Humans , Male , Female , Colonic Neoplasms , Rectal Neoplasms , Intestine, Large/pathology , Risk Factors
15.
Rev. AMRIGS ; 31(3): 191-3, jul.-set. 1987. ilus
Article in Portuguese | LILACS | ID: lil-53381

ABSTRACT

Angiodisplasia de cólon pode ser responsável por sangramento intestinal crônico ou intermitente agudo, geralmente em pacientes idosos. O diagnóstico pode ser estabelecido pré-operatoriamente através da colonoscopia ou arteriografia. No transoperatório, é particularmente dificil de ser diagnosticada, devido à localizaçäo das lesöes na submucosa. É descrito um método alternativo de identificaçäo das lesöes vasculares, na sala de cirurgia, injetando-se azul de metileno na artéria ileocólica do intestino logo após a ressecçäo cirúrgica. O método permitiu corar as lesöes vasculares, auxiliando no diagnóstico macroscópico das mesmas e orientando melhor o patologista no exame dos locais corados e marcados


Subject(s)
Aged , Humans , Male , Colonic Diseases/pathology , Gastrointestinal Hemorrhage/pathology , Methylene Blue , Telangiectasis/pathology , Preoperative Care , Staining and Labeling
17.
Article in Portuguese | LILACS | ID: lil-33666

ABSTRACT

Angiodisplasia de cólon está sendo reconhecida como uma causa importante de hemorragia colônica em paciente idosos. Colonoscopia em uma paciente de 73 anos com sangramento intestinal recorrente revelou esta lesäo. Confirmaçäo diagnóstica foi obtida pelo exame histopatológico. Säo discutidos aspectos clínicos, diagnósticos, fisiopatológicos e tratamento desta entidade


Subject(s)
Aged , Humans , Female , Colonic Diseases/complications , Gastrointestinal Hemorrhage/etiology , Colonoscopy
18.
Rev. bras. colo-proctol ; 1(2): 39-43, abr.-jun. 1981. tab
Article in Portuguese | LILACS | ID: lil-100271

ABSTRACT

Os autores, de acordo com os dados obtidos neste estudo, encontraram um efeito profilático da infecçäo incisional, em cirurgias prolongadas do cólon e reto, pela associaçäo da kenamicina ao preparo mecânico do cólon


Subject(s)
Adolescent , Adult , Middle Aged , Humans , Male , Female , Colon , Preoperative Care/methods , Surgical Wound Infection/prevention & control , Brazil , Kanamycin/immunology , Sulfaguanidine/immunology
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