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1.
Korean J Gastroenterol ; 82(1): 30-34, 2023 07 25.
Artigo em Inglês | MEDLINE | ID: mdl-37489080

RESUMO

Phlebosclerotic colitis is a rare form of intestinal ischemia. It is caused by calcified peripheral mesenteric veins and a thickened colonic wall. These characteristic findings can be identified on CT and colonoscopy. A 37-year-old female with a history of long-term herbal medicine use presented with acute lower abdominal pain and vomiting of sudden onset. Colonoscopic findings showed dark-blue discolored edematous mucosa and multiple ulcers from the ascending colon to the sigmoid colon. Abdominal CT findings showed diffuse thickening of the colonic wall and calcifications of the peripheral mesenteric veins from the ascending colon to the sigmoid colon. Based on these findings, the patient was diagnosed with phlebosclerotic colitis. We report this rare case of phlebosclerotic colitis in a healthy young female patient with a history of long-term herbal medicine use and include a review of the relevant literature.


Assuntos
Colite Isquêmica , Colite , Adulto , Feminino , Humanos , Colite/diagnóstico , Colite/tratamento farmacológico , Colite Isquêmica/diagnóstico , Colite Isquêmica/etiologia , Colonoscopia , Extratos Vegetais , Tomografia Computadorizada por Raios X
2.
Ann Emerg Med ; 82(1): 37-46, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-36966044

RESUMO

STUDY OBJECTIVE: Stercoral colitis is inflammation of the bowel wall caused by fecal impaction. Despite reported high morbidity and risk of perforation, little research assessing outcomes is available. This study characterizes the presentation, management, and outcomes of emergency department patients with stercoral colitis. METHODS: We performed a retrospective chart review of ED patients with stercoral colitis identified on computed tomography (CT) scan. Of 814, 522 visits to multiple EDs across the US, 269 met the inclusion criteria. Variables regarding patient presentation, management, and outcomes were extracted from electronic medical records. Results were analyzed with percentages and 95% confidence intervals (CIs). RESULTS: Of 269 patients, the median age was 76 years. The most common chief concern was abdominal pain/distension (33.8%). However, abdominal pain was documented as absent in 62.1% of cases. The most common CT findings included fecal impaction (96.7%), bowel wall inflammation (72.9%), and fat stranding (48.3%). Eighty-four (31.2%) patients were discharged home from the ED, and over half of these (45/84, 53.6%) received no enema, laxatives, or disimpaction. Overall, 9 patients (3.3%, 95% CI 1.6% to 6.5%) required surgical management of a related complication within 3 months, 27 (10.0%, 95% CI 6.8% to 14.4%) returned to the ED within 72 hours, and 9 (3.3%, 95% CI 1.6% to 6.5%) died from a cause related to stercoral colitis within 3 months. CONCLUSION: Patients with stercoral colitis often present in a nonspecific manner, and short-term mortality is substantial. In this study, most discharged patients did not receive recommended treatment. This represents the largest ED study of stercoral colitis and provides further evidence linking this diagnosis with adverse outcomes.


Assuntos
Colite , Impacção Fecal , Humanos , Idoso , Impacção Fecal/complicações , Impacção Fecal/diagnóstico por imagem , Impacção Fecal/terapia , Estudos Retrospectivos , Inflamação , Dor Abdominal/complicações , Colite/diagnóstico , Colite/complicações
4.
Rev. medica electron ; 40(5): 1585-1600, set.-oct. 2018. graf
Artigo em Espanhol | CUMED | ID: cum-77409

RESUMO

RESUMEN La poliposis gigante localizada es una complicación rara de la colitis ulcerativa ideopática de corta evolución. Esta lesión representa un acumulo localizado de pólipos que forman una masa colónica intraluminal de aspecto neoplásico que puede simular un cáncer de colon. Suele presentarse en los adultos jóvenes y es más común en los países desarrollados con una incidencia cada vez mayor. Se presentó un caso de pólipos inflamatorios gigantes (PIG) de recto sigmoides que ingresa como un probable tumor de recto cuyas manifestaciones clínicas fueron semejantes a la de cualquier enfermedad inflamatoria. El paciente desarrolló esta masa inflamatoria sobre una enfermedad inflamatoria intestinal de poco tiempo de evolución clínica, con buena respuesta al tratamiento medicamentoso (AU).


ABSTRACT The located giant polyposis is rare complication of idiopathic ulcerative colitis of short evolution. This lesion is a localized accumulation of polyps forming an intra luminal colon mass of neoplastic aspect that might simulate a colon cancer. It is usually found in young adults, and it is more common in developed countries with a higher and higher incidence. We presented a case of giant inflammatory polyps (PIG as acronym in Spanish) of sigmoid rectum that entered the hospital as a probably rectum tumour, the clinical manifestations of which were similar to others of any inflammatory disease. The patient developed an inflammatory mass on a, intestinal inflammatory disease of short time clinical evolution, with a good answer to the medicinal treatment (AU).


Assuntos
Humanos , Masculino , Adulto Jovem , Colite/diagnóstico , Polipose Adenomatosa do Colo/epidemiologia , Ferimentos e Lesões/diagnóstico , Evolução Clínica , Colo/anormalidades , Polipose Adenomatosa do Colo/complicações , Polipose Adenomatosa do Colo/diagnóstico
5.
Rev. medica electron ; 40(5): 1585-1600, set.-oct. 2018. graf
Artigo em Espanhol | LILACS, CUMED | ID: biblio-978689

RESUMO

RESUMEN La poliposis gigante localizada es una complicación rara de la colitis ulcerativa ideopática de corta evolución. Esta lesión representa un acumulo localizado de pólipos que forman una masa colónica intraluminal de aspecto neoplásico que puede simular un cáncer de colon. Suele presentarse en los adultos jóvenes y es más común en los países desarrollados con una incidencia cada vez mayor. Se presentó un caso de pólipos inflamatorios gigantes (PIG) de recto sigmoides que ingresa como un probable tumor de recto cuyas manifestaciones clínicas fueron semejantes a la de cualquier enfermedad inflamatoria. El paciente desarrolló esta masa inflamatoria sobre una enfermedad inflamatoria intestinal de poco tiempo de evolución clínica, con buena respuesta al tratamiento medicamentoso (AU).


ABSTRACT The located giant polyposis is rare complication of idiopathic ulcerative colitis of short evolution. This lesion is a localized accumulation of polyps forming an intra luminal colon mass of neoplastic aspect that might simulate a colon cancer. It is usually found in young adults, and it is more common in developed countries with a higher and higher incidence. We presented a case of giant inflammatory polyps (PIG as acronym in Spanish) of sigmoid rectum that entered the hospital as a probably rectum tumour, the clinical manifestations of which were similar to others of any inflammatory disease. The patient developed an inflammatory mass on a, intestinal inflammatory disease of short time clinical evolution, with a good answer to the medicinal treatment (AU).


Assuntos
Humanos , Masculino , Adulto Jovem , Colite/diagnóstico , Polipose Adenomatosa do Colo/epidemiologia , Ferimentos e Lesões/diagnóstico , Evolução Clínica , Colo/anormalidades , Polipose Adenomatosa do Colo/complicações , Polipose Adenomatosa do Colo/diagnóstico
6.
J Allergy Clin Immunol ; 141(1): 382-390.e7, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28629745

RESUMO

BACKGROUND: Childhood exposure to a farm environment has been shown to protect against the development of inflammatory diseases, such as allergy, asthma, and inflammatory bowel disease. OBJECTIVE: We sought to investigate whether both exposure to microbes and exposure to structures of nonmicrobial origin, such as the sialic acid N-glycolylneuraminic acid (Neu5Gc), might play a significant role. METHODS: Exposure to Neu5Gc was evaluated by quantifying anti-Neu5Gc antibody levels in sera of children enrolled in 2 farm studies: the Prevention of Allergy Risk factors for Sensitization in Children Related to Farming and Anthroposophic Lifestyle (PARSIFAL) study (n = 299) and the Protection Against Allergy Study in Rural Environments (PASTURE) birth cohort (cord blood [n = 836], 1 year [n = 734], 4.5 years [n = 700], and 6 years [n = 728]), and we associated them with asthma and wheeze. The effect of Neu5Gc was examined in murine airway inflammation and colitis models, and the role of Neu5Gc in regulating immune activation was assessed based on helper T-cell and regulatory T-cell activation in mice. RESULTS: In children anti-Neu5Gc IgG levels correlated positively with living on a farm and increased peripheral blood forkhead box protein 3 expression and correlated inversely with wheezing and asthma in nonatopic subjects. Exposure to Neu5Gc in mice resulted in reduced airway hyperresponsiveness and inflammatory cell recruitment to the lung. Furthermore, Neu5Gc administration to mice reduced the severity of a colitis model. Mechanistically, we found that Neu5Gc exposure reduced IL-17+ T-cell numbers and supported differentiation of regulatory T cells. CONCLUSIONS: In addition to microbial exposure, increased exposure to non-microbial-derived Neu5Gc might contribute to the protective effects associated with the farm environment.


Assuntos
Colite/imunologia , Colite/prevenção & controle , Fazendeiros , Inflamação/imunologia , Inflamação/prevenção & controle , Ácidos Neuramínicos/imunologia , Doenças Respiratórias/imunologia , Doenças Respiratórias/prevenção & controle , Fatores Etários , Alérgenos/imunologia , Animais , Biomarcadores , Criança , Pré-Escolar , Colite/diagnóstico , Estudos Transversais , Modelos Animais de Doenças , Exposição Ambiental , Humanos , Imunoglobulina E/imunologia , Imunoglobulina G/imunologia , Lactente , Inflamação/diagnóstico , Linfócitos/imunologia , Linfócitos/metabolismo , Camundongos , Camundongos Knockout , Vigilância da População , Doenças Respiratórias/diagnóstico , Índice de Gravidade de Doença , Subpopulações de Linfócitos T/imunologia , Subpopulações de Linfócitos T/metabolismo
7.
BMC Gastroenterol ; 17(1): 129, 2017 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-29179680

RESUMO

BACKGROUND: Stercoral colitis is a rare inflammatory process involving the colonic wall secondary to fecal impaction with high morbidity and mortality; especially if complicated with ischemic colitis, stercoral ulcer formation and subsequent perforation. There are several case reports published on abdominal perforation resulting from stercoral colitis. However, stercoral colitis complicated by ischemic colitis is rare. The purpose of this case report is to describe the potential challenges in the diagnosis and management of stercoral colitis with ischemic colitis. CASE PRESENTATION: An 87 years old male with history of chronic constipation presents with severe abdominal pain to the emergency department. The patient was hemodynamically stable. On physical examination, the abdomen was mildly distended with moderate tenderness. Lab work was significant for leukocytosis and lactic acidosis. Abdominal CT scan revealed large amount of retained stool in the colon, bowel wall thickening and infiltration of peri-colonic fat, which were suggestive for stercoral colitis. Patient was started on IV fluids and antibiotics. He was given an enema, followed by laxative and manual disimpaction of stool. Colonoscopy was performed and biopsies were obtained. Tissue biopsy was significant for focal active colitis with regenerative glandular changes and neural hyperplasia. CONCLUSION: Elevated lactic acid level secondary to ischemia of the bowel wall with CT scan findings aid in establishing the diagnosis of stercoral colitis complicated with ischemic colitis. Urgent treatment with laxatives and fecal disimpaction is indicated to prevent perforation and peritonitis.


Assuntos
Colite Isquêmica/complicações , Colite/complicações , Impacção Fecal/complicações , Acidose Láctica/complicações , Acidose Láctica/diagnóstico , Idoso de 80 Anos ou mais , Biópsia , Colite/diagnóstico , Colite/tratamento farmacológico , Colite Isquêmica/diagnóstico , Colite Isquêmica/tratamento farmacológico , Colonoscopia , Impacção Fecal/diagnóstico , Impacção Fecal/tratamento farmacológico , Humanos , Laxantes/uso terapêutico , Leucocitose/complicações , Leucocitose/diagnóstico , Masculino , Tomografia Computadorizada por Raios X
9.
J Med Case Rep ; 11(1): 160, 2017 Jun 16.
Artigo em Inglês | MEDLINE | ID: mdl-28619048

RESUMO

BACKGROUND: Hematochezia is a frequent symptom in early infancy. However, it occurs very rarely within the immediate neonatal period, and its occurrence before any oral intake is particularly rare. Because of the "congenital" presentation of hematochezia in our patient, we initially considered our case to be a non-classical, potentially severe type of food protein-induced allergic proctocolitis. This diagnosis needs to be confirmed by an abnormal oral challenge test once the hematochezia has disappeared. If such a challenge cannot demonstrate an allergic origin, then the etiology of the hematochezia could be a neonatal transient eosinophilic colitis. Only two similar cases have been described so far. CASE PRESENTATION: We report the case of a black baby boy of African origin born at 36 weeks 5 days of gestational age who presented with massive hematochezia immediately after birth. A rectosigmoidoscopy revealed a severe inflammation associated with diffuse eosinophilic infiltration on biopsy. His clinical outcome was favorable after introduction of an amino acid formula diet. We initially considered our case to be a non-classical, potentially severe type of food protein-induced allergic proctocolitis but reintroduction of standard formula milk at the age of 3 months was successful. So, our patient is the first newborn in Europe who fits the diagnosis of "neonatal transient eosinophilic colitis." CONCLUSIONS: We discuss the possible etiology of "congenital" eosinophilic inflammation of the distal colon and conclude that hematochezia in well-looking neonates, in the absence of negative challenge tests later on, is more likely to be a neonatal transient eosinophilic colitis than an allergic proctocolitis. This new entity could be more frequent than previously thought, changing our medical care strategies for this kind of neonatal symptom.


Assuntos
Colite/complicações , Colite/diagnóstico , Eosinofilia/complicações , Eosinofilia/diagnóstico , Hemorragia Gastrointestinal/congênito , Hemorragia Gastrointestinal/etiologia , Proctocolite/complicações , Aminoácidos , Animais , Bovinos , Colite/dietoterapia , Diagnóstico Diferencial , Eosinofilia/dietoterapia , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/dietoterapia , Humanos , Fórmulas Infantis , Fenômenos Fisiológicos da Nutrição do Lactente , Recém-Nascido , Masculino , Hipersensibilidade a Leite/complicações , Hipersensibilidade a Leite/dietoterapia , Proctocolite/diagnóstico , Proctocolite/dietoterapia , Sigmoidoscopia , Resultado do Tratamento
10.
J Infect Chemother ; 22(12): 826-829, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27527253

RESUMO

When we examine a patient with symptoms of acute enteritis in the course of chemotherapy with oral fluoropyrimidines such as uracil-tegafur (often referred to as UFT), we usually suspect 5-fluorouracil-induced enterocolitis. In case of persistent clinical symptoms despite discontinuation of chemotherapy, cytomegalovirus colitis should be considered in the differential diagnosis of chemotherapy-induced enterocolitis. We herein report the case of a patient who underwent surgery for lung adenocarcinoma followed by postoperative adjuvant chemotherapy with uracil-tegafur and was diagnosed as having cytomegalovirus colitis during the therapy. In the course of chemotherapy, cytomegalovirus colitis occasionally occurs even though the patient does not experience severe myelosuppression; thus, it is necessary that we recognize its potential occurrence.


Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Colite/diagnóstico , Colite/virologia , Infecções por Citomegalovirus/diagnóstico , Citomegalovirus/isolamento & purificação , Neoplasias Pulmonares/tratamento farmacológico , Adenocarcinoma de Pulmão , Idoso , Quimioterapia Adjuvante/métodos , Infecções por Citomegalovirus/virologia , Feminino , Fluoruracila/administração & dosagem , Humanos , Cuidados Pós-Operatórios , Tegafur/administração & dosagem
11.
Indian J Gastroenterol ; 35(2): 139-42, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27033844

RESUMO

Drug-related injury has been noted in virtually all organ systems, and recognition of the patterns of injury associated with medication enables modification of treatment and reduces the morbidity associated with the side effects of drugs. With the large number of new drugs being developed, documentation of the morphology of the changes seen as an adverse effect becomes important to characterize the pattern of injury. The pathologist is often the first to identify these abnormalities and correlate them with a particular drug. Kayexalate or sodium polystyrene sulfonate (SPS), a linear polymer derived from polystyrene containing sulfonic acid and sulfonate functional groups is used to treat hyperkalemia. It is usually administered with an osmotic laxative sorbitol orally or as retention enema. This combination has been implicated in causing damage to different parts of the gastrointestinal (GI) tract especially the colon and causes an established pattern of injury, recognizable by the presence of characteristic crystals, is presented to create a greater awareness of the Kayexalate colitis. This entity should be included in the differential diagnosis of lower GI mucosal injury in a setting of uremia and hyperkalemia.


Assuntos
Colite/induzido quimicamente , Laxantes/efeitos adversos , Poliestirenos/efeitos adversos , Sorbitol/efeitos adversos , Administração Oral , Idoso , Colite/diagnóstico , Colite/patologia , Colo/patologia , Diagnóstico Diferencial , Combinação de Medicamentos , Enema , Feminino , Humanos , Mucosa Intestinal/patologia , Laxantes/administração & dosagem , Masculino , Pessoa de Meia-Idade , Poliestirenos/administração & dosagem , Sorbitol/administração & dosagem
12.
BMJ Case Rep ; 20162016 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-26957036

RESUMO

A 57-year-old man, diagnosed with colon cancer stage III in July/2010, underwent surgery and received adjuvant chemotherapy with FOLFOX 4 (5-fluorouracil; calcium folinate and oxaliplatin), which ended in March/2011 after 12-cycles. It was then decided to maintain periodical surveillance. About 1 year later, the patient developed several episodes of diarrhoea, mainly during the night, and presented persistent peripheral eosinophilia in the blood count (range 585-1300 eosinophils/µL). Colonoscopy was performed, with the histological result showing eosinophilic infiltration of the colon, compatible with eosinophilic colitis. The patient was treated with a short course of budesonide, achieving resolution of symptoms, and has remained asymptomatic.


Assuntos
Colite/diagnóstico , Colite/tratamento farmacológico , Eosinofilia/diagnóstico , Eosinofilia/tratamento farmacológico , Budesonida/uso terapêutico , Colonoscopia , Glucocorticoides/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
13.
Int J Antimicrob Agents ; 46 Suppl 1: S47-50, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26612229

RESUMO

The most important infectious cause of antibiotic-associated diarrhoea and colitis is Clostridium difficile, which is a Gram-positive, anaerobic, spore-forming, toxin-producing bacillus. In this overview we will discuss the diagnostic and therapeutic management of patients presenting with suspected or proven C. difficile infection (CDI). The clinical spectrum varies from asymptomatic C. difficile carriers to fulminant colitis with multi-organ failure. The onset of symptoms is usually within 2 weeks after initiation of antibiotic treatment. Diagnosis is based on the combination of clinical symptoms and either a positive stool test for C. difficile toxins or endoscopic or histological findings of pseudomembranous colitis. There is no indication for treatment of asymptomatic carriers, but patients with proven CDI should be treated. Treatment consists of cessation of the provoking antibiotic treatment, secondary prevention by infection control strategies, and treatment with metronidazole or vancomycin. Treatment of recurring CDI, severe infection, the need for surgery, and novel alternative potential treatment strategies will be discussed. The concurrent increase in multiresistant colonisation and increasing numbers of asymptomatic carriers of C. difficile will lead to an increase of the situation in which patients with severe infections, treated with broad-spectrum antibiotics, will develop concurrent severe CDI. We will discuss possible therapy strategies for these patients.


Assuntos
Terapia Biológica/métodos , Clostridioides difficile/isolamento & purificação , Infecções por Clostridium/patologia , Colite/patologia , Testes Diagnósticos de Rotina/métodos , Tratamento Farmacológico/métodos , Procedimentos Cirúrgicos Operatórios/métodos , Administração de Caso , Infecções por Clostridium/diagnóstico , Infecções por Clostridium/terapia , Colite/diagnóstico , Colite/terapia , Humanos
14.
Int J Surg ; 12(10): 1088-92, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25150021

RESUMO

INTRODUCTION: Diversion colitis is a non-specific inflammation of a de-functioned segment of intestine after diversion of the faecal stream. AIM: The aim of this study was to review the current level of knowledge about diversion colitis. METHODS: A literature search of relevant literature in the English language was carried out on PUBMED, MEDLINE and EMBASE. The following keywords were used: diversion colitis; disuse colitis; proctitis; colonic bacterial flora; stoma; de-functioned colon; faecal diversion; short chain fatty acids and lymphoid follicular hyperplasia. RESULTS: In total 35 articles met the inclusion criteria. 22 were case series, 9 were case reports, 2 were retrospective analysis and 2 were prospective randomized controlled studies. Diversion colitis is invariably present in all diverted segments of the colon. It is usually asymptomatic but can present with tenesmus, rectal discharge, bleeding per rectum and abdominal pain. Major macroscopic changes include mucosal nodularity, erythema and friability. Microscopic features are predominantly those of lymphoid follicular hyperplasia, apthous ulceration and chronic inflammatory changes, mostly limited to sub mucosa. Treatment modalities include surveillance for asymptomatic patients, restoration of bowel continuity for severely symptomatic cases and the use of short chain fatty acid (SCFA) enemas in selected cases. CONCLUSION: The clinical presentation of diversion colitis varies significantly. In symptomatic patients short chain fatty acid enema may help. Further prospective studies are required for evaluation.


Assuntos
Colite/diagnóstico , Colite/terapia , Complicações Pós-Operatórias , Dor Abdominal/etiologia , Hiperplasia do Linfonodo Gigante/etiologia , Colite/etiologia , Colite/fisiopatologia , Enema , Eritema/etiologia , Ácidos Graxos Voláteis/uso terapêutico , Hemorragia Gastrointestinal/etiologia , Humanos , Inflamação/etiologia , Mucosa Intestinal/patologia , Reto/cirurgia
16.
J Gastroenterol Hepatol ; 29(4): 749-56, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24236761

RESUMO

BACKGROUND AND AIM: Medical treatment for inflammatory bowel disease (IBD) requires chronic administration and causes side effects. Recently, anti-inflammatory effects of phototherapy were reported in animal models. The present study evaluated whether phototherapy improves dextran sulfate sodium (DSS)-induced colitis in a mouse model of IBD. METHODS: Mice were divided into four equal groups: Control, DSS, DSS + light low (LL), and DSS + light high (LH) groups. Normal fluorescent light intensity in the Control and DSS groups was 200 lux. Artificial light intensities were as follows: DSS + LL group, 1000 lux; DSS + LH group, 2500 lux. After administering phototherapy for 7 days, we evaluated disease activity index (DAI), histological score, colon length/weight, serum 1,25-dihydroxyvitamin D(3) level, and serum and colonic cytokines in the mice. RESULTS: DAI and histological scores were significantly lower in the DSS + LL group than in the DSS group (both, P < 0.05). Colon length and weight were significantly higher in the DSS + LL group than in the DSS group (both, P < 0.05). Serum interleukin (IL)-6, TNF-α, and IL-17 in the DSS + LL group were significantly lower, and serum and colonic IL-10 were significantly higher in the DSS + LL group than in the DSS group (all, P < 0.05). Serum 1,25-dihydroxyvitamin D(3) levels in the DSS + LH group were significantly increased compared with those in the DSS + LL and DSS groups. CONCLUSION: Artificial light phototherapy suppressed DSS-induced colitis in mice by suppression of pro-inflammatory cytokines and promotion of anti-inflammatory cytokines.


Assuntos
Colite/induzido quimicamente , Colite/terapia , Fototerapia/métodos , Animais , Biomarcadores/análise , Biomarcadores/sangue , Calcitriol/sangue , Colite/diagnóstico , Colite/patologia , Sulfato de Dextrana/toxicidade , Modelos Animais de Doenças , Relação Dose-Resposta à Radiação , Mediadores da Inflamação/análise , Mediadores da Inflamação/sangue , Interleucina-10/análise , Interleucina-10/sangue , Interleucina-6/sangue , Masculino , Camundongos , Camundongos Endogâmicos ICR , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento , Fator de Necrose Tumoral alfa/sangue
20.
Clin Ter ; 161(4): 385-90, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20931164

RESUMO

Microscopic colitis is an increasingly common cause of chronic watery diarrhoea, and often a causes of abdominal pain of unknown origins. The increase of interest for this clinical entity is due to a misdiagnosis of any symptoms that have been frequently attributed to diarrhea-predominant irritable bowel syndrome, often for many years before diagnosis. Presumably, most estimates of incidence and prevalence understate the true frequency of microscopic colitis for this reason. The aim of this paper is to evaluate the importance of microscopic colitis as cause of chronic non bloody diarrhoea, on the basis of literature review. These kind of colitis are characterized by normal colonic mucosa at endoscopy or barium enema but with increased inflammation in colonic biopsies. Microscopic colitis consists of two main subtypes, collagenous colitis and lymphocytic colitis, distinguished by the presence of absence of a thickened subepithelial collagen band. Several models of pathogenesis has been proposed but no convincing mechanism has been identified, although is difficult to characterize this clinical entity as an independent phenomenon or a simple manifestation or related factors active to induce microscopic changing in the colonic mucosa. A rational approach to therapy does not exist and was conduct with several types of drugs after the exclusion of other causes, commonly characterized by this symptoms and the definitive histological assessment in the biopsies specimens. In the majority of cases this condition tends to follow a self-limited course but potentially can assume the characteristics of relapsing course with the necessity to a chronic therapy. Several long-term follow-up studies excluded a possible progression to neoplastic malignancies of microscopic colitis.


Assuntos
Colite , Colite/diagnóstico , Colite/tratamento farmacológico , Colite/etiologia , Humanos
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