RESUMO
Introducción: Algunos autores han demostrado incremento de células neuroendócrinas en colitis microscópica y colitis ulcerativa. Objetivo: El objetivo del presente estudio fue evaluar la presencia de células neuroendócrinas en colitis linfocítica, colitis colagenosa y colitis ulcerativa en comparación a controles. Materiales y métodos: Se usó inmunohistoquímica para identificar a las células neuroendócrinas a través del marcador cromogranina A. El estudio incluyó 10 casos de cada diagnóstico de colitis linfocítica, colitis colagenosa y colitis ulcerativa. Resultados: Se encontró diferencia estadísticamente significativa en el conteo de células neuroendocrinas en colitis linfocítica (p=0,019104) y colitis ulcerativa en comparación con los controles (p=0,0077). En colitis colagenosa, se encontró un incremento de células neuroendocrinas pero no pudimos demostrar diferencias estadísticamente significativa. Conclusión: Se demostró hiperplasia de células neuroendocrinas en colitis linfocítica y colitis ulcerativa, lo que confirma lo reportado por los pocos estudios anteriores realizados sobre el tema.
Introduction: Some authors have found increase of neuroendocrine cells in microscopic colitis and ulcerative colitis. Objective: The aim of this study is to evaluate the presence of neuroendocrine cells in ulcerative colitis and lymphocytic colitis and collagenous colitis. Materials and methods: Immunohistochemistry was performed to identify neuroendocrine cells through marker chromogranin A (CgA). The study included 10 cases of each diagnosis of Lymphocytic colitis, collagenous colitis and ulcerative colitis. Results: There was statistically significant difference in the count of neuroendocrine cells, between lymphocytic colitis and control (p=0.019104), and between ulcerative colitis and controls (p=0.0077). In collagenous colitis there was an increase in neuroendocrine cells but we failed to find statistical differences. Conclusion: We could observe neuroendocrine cell hyperplasia in lymphocytic colitis and ulcerative colitis compared with controls, which confirm previous studies.
Assuntos
Humanos , Colite Ulcerativa/patologia , Colite Colagenosa/patologia , Colite Linfocítica/patologia , Células Neuroendócrinas/patologia , HiperplasiaRESUMO
Introducción: Colitis linfocítica y enteritis microscópica son causas relativamente comunes de diarrea crónica y ambas se caracterizan por un infiltrado linfocitico intraepitelial. No existen reportes previos de la coexistencia de ambas entidades. Objetivo: Describir las características clínicas e histológicas de los pacientes que presentan este diagnóstico simultáneamente. Material y métodos: Se seleccionaron pacientes adultos con diarrea crónica que tuvieran biopsia simultánea de colon y duodeno tomados el mismo día, durante los años 2010-2016, en el Servicio de Gastroenterología del Hospital Nacional Daniel Alcides Carrión. Se recopiló información clínica del archivo de historias. Las láminas fueron reevaluadas histológicamente por 3 patólogos. Se realizó estudio inmunohistoquímico de linfocitos intraepiteliales para CD8 y CD3 en 6 casos. Resultados: De 63 pacientes con diarrea crónica y biopsia simultánea de duodeno y colon, se identificó un total de 35 pacientes (55,5%) con diagnóstico simultáneo de enteritis microscópica y colitis linfocítica, 80% fueron mujeres. Se identificó anemia en 28,5% de los pacientes e infestación por Blastocystis hominis en el 31,8.%. En enteritis microscópica, el promedio de linfocitos intraepiteliales con CD8 y CD3 fue 40%, mientras que, en colitis linfocítica, el promedio fue de 37,2% para CD3 y 29,2% para CD8. En 11 de los 35 casos, se pudo obtener biopsias de íleon que fueron diagnosticadas como ileitis linfocítica. En 9 casos se diagnosticó colitis eosinofílica asociada a colitis linfocítica. Conclusión: Se encontró coexistencia de colitis linfocítica, enteritis microscópica y en algunos de ileitis linfocítica en un 55,5% pacientes con diarrea crónica con biopsia duodenal y colónica. Estos resultados abren la interrogante sobre si colitis linfocítica y enteritis microscópica son entidades diferentes o constituyen una sola patología que en algunos pacientes afecta varios segmentos del tubo digestivo.
Introduction: Lymphocytic colitis and microscopic enteritis are relatively common causes of chronic diarrhea and it is characterized by an intraepithelial lymphocytic infiltrate. There have been no previous reports of coexistence between these 2 pathologies. Objective: To describe histological and clinical characteristic in patients with coexistence of lymphocytic colitis and microscopic enteritis. Material and methods: All cases with simultaneous diagnosis of lymphocytic duodenosis and lymphocytic colitis were reevaluated during lapse time 2010-2016 in hospital Daniel Carrion. The slides were reviewed by 3 pathologists and clinical information was obtained from clinical records. Expression of CD3 and CD8 was detected in 6 cases by immunohistochemical assays. Results: A total of 35 patients with coexistence of lymphocytic duodenitis and lymphocytic colitis were selected of the pathology archives, 80% were females, Anemia was identified in 28.5% of patients. Blastocysitis hominis infestation was identified in 31.8%. The mean intraepithelial lymphocyte CD8 and CD3 positive was 40% in microscopic enteritis, while the mean intraepithelial lymphocyte CD3 positive was 37.2% and CD8 positive was 29.2% Additionally, lymphocytic ileitis was diagnosed in 11 of our cases. Eosinophilic colitis was diagnosed in 9 cases of lymphocytic colitis Conclusion: We found that lymphocytic colitis, microscopic enteritis and even lymphocytic ileitis can coexist in a group of patients with chronic diarrhea. These findings bring the question if this concurrence of both pathologies constituted a more generalized gastrointestinal disorder, involving both the large and the small intestines.
Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Colite Microscópica/complicações , Colite Linfocítica/complicações , Diarreia/etiologia , Biópsia , Doença Crônica , Estudos Transversais , Estudos Retrospectivos , Infecções por Blastocystis/complicações , Infecções por Blastocystis/patologia , Colo/patologia , Colite Microscópica/patologia , Colite Linfocítica/patologia , Duodeno/patologia , Ileíte/complicações , Ileíte/patologia , Íleo/patologiaRESUMO
The relationship between Microscopic Colitis and Inflammatory Bowel Disease is unclear. However, when both are diagnosed they seem to be part of a broader spectrum of the same disease, more than just a coincidence. We report a 55 years old woman with Ulcerative Colitis limited to the rectum with complete clinical and endoscopic response to standard treatment and adequate surveillance for 13 years, who abandoned treatment and control. After eight years, she consulted for mild-to-moderate non-bloody diarrhea lasting several months. Colonoscopy and basic laboratory did not show any alterations. Nevertheless, random biopsies had a characteristically pattern compatible with Lymphocytic Colitis. After the first week of treatment with budesonide the patient was asymptomatic and still in clinical remission, with negative fecal calprotectin at 6 months follow-up.
Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Colite Ulcerativa/patologia , Colite Linfocítica/patologia , Biópsia , Doenças Inflamatórias Intestinais/complicações , Colonoscopia , Complexo Antígeno L1 Leucocitário/análise , Fezes/químicaRESUMO
BACKGROUND/AIMS: Microscopic colitis is characterized by chronic watery diarrhea with specific pathological changes that can be diagnosed by microscopic examination. We performed immunohistochemical analysis of proinflammatory cytokines to investigate the pathogenic mechanism of microscopic colitis. METHODS: This study consisted of six patients with lymphocytic colitis, six patients with collagenous colitis, and six patients with functional diarrhea but normal pathology. We performed an immunohistochemical analysis of the colonic mucosal biopsies to assess the expression of cyclo-oxygenase-2, interleukin-17, nuclear factor-kappaB, interferon-gamma, inducible nitric oxide synthase, and tumor necrosis factor-alpha. We compared the quantity score of immunohistochemical staining among the groups. RESULTS: The microscopic colitis group showed significantly higher expression of cyclo-oxygenase-2, interleukin-17, nuclear factor-kappaB, and interferon-gamma compared with the control group. Cytokine expression was similar between collagenous colitis and lymphocytic colitis. However, the expression of cyclo-oxygenase-2 was higher in collagenous colitis. CONCLUSIONS: Proinflammatory cytokines, including interleukin-17 and interferon-gamma, are highly expressed in microscopic colitis. The expression of cyclo-oxygenase-2 was higher in collagenous colitis than in lymphocytic colitis. This study is the first on interleukin-17 expression in microscopic colitis patients.
Assuntos
Humanos , Biópsia , Colite Microscópica/metabolismo , Colo/patologia , Ciclo-Oxigenase 2/metabolismo , Citocinas/metabolismo , Diarreia/metabolismo , Interferon gama/metabolismo , Interleucina-17/metabolismo , Mucosa Intestinal/patologia , NF-kappa B/metabolismo , Óxido Nítrico Sintase Tipo II/metabolismo , Fator de Necrose Tumoral alfa/metabolismoRESUMO
Objective To investigate the clinical value of endoscopy for chronic diarrhea in infants and safety of gastroscopy replacing colonoscopy.Methods According to the Nelson chronic diarrhea definition,data of 52 hospitalized infants under 1 year from March 2006 to April 2014,who underwent colonoscopy because of diarrhea lasting for more than 2 weeks and achieving no improvement after series of treatments,or diarrhea suspected with severe milk protein allergy were collected.Endoscopy and mucosal biopsy were performed under intravenous anesthesia.Results A total of 49 cases (94.2%)were found abnormal under endoscopy.Lymphocytes,plasma cells and a little eosinophils were found in lamina propria in 26 cases,20-100 eosinophils/HPF were found in lamina propria in 21 patients,who were diagnosed as eosinophilic colitis.The 21 patients came back for open food challenge test 4 weeks later,16 cases were positive,who were diagnosed as milk protein allergy.Two infants with Crohn disease and ulcerative colitis respectively were treated with mesalazine and prednisone,but symptoms repeated.No complication was observed during endoscopy.Conclusion The etiology of infant chronic diarrhea is complex,except for peptic infections and lactose intolerance ,eosinophilic colitis may be the major cause.Ulcerative colitis and Crohn disease are rare in infants,but cannot be ignored .Endoscopy and mucosal biopsy are important in di-agnosis and treatment.Gastroscopy instead of colonoscopy is safe and effective.