EVALUACION DEL COLON POR TC: ENFERMEDADES INFLAMATORIAS .


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COLON NORMAL. APENDICITIS. Causa: oclusi
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EVALUACION DEL COLON POR TC: ENFERMEDADES INFLAMATORIAS

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COLON NORMAL

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APENDICITIS Causa: oclusión de la luz acúmulo de fluido dilatación, inflamación e isquemia eventualmente absceso TC especificidad y sensibilidad del 98%

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APENDICITIS Apendice typical generalmente se lo ve por TC Presentan gas hasta el half Pueden medir hasta 20 cm

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APENDICITIS . Appendicolith. Drawing demonstrates an appendicolith that hinders the appendiceal lumen, bringing about dilatation of the supplement and divider thickening.

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Normal informative supplement. Differentiate upgraded winding CT examine demonstrates a typical air-filled reference section (bolt).

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APENDICITIS TC: diámetro leader a 6 mm +++ engrosamiento painting + - fluidos o debris apendicolito 25-40% alteración de la grasa perforación-absceso rara complicación

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Appendicitis. Differentiate upgraded winding CT filter demonstrates an enlarged, liquid filled index (bolts). Insignificant provocative changes are likewise present in the nearby mesenteric fat.

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Appendicitis in a patient with intense onset right lower quadrant torment. Winding CT examine acquired with oral and intravenous differentiation material shows extension of the index, which is loaded with liquid (bolts).

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. An infected appendix in a patient with intense onset right lower quadrant torment. Nonenhanced CT filter indicates direct provocative changes in the correct lower quadrant. An appendicolith is distinguished (bolt).

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Periappendiceal ulcer. Differentiate upgraded CT filter demonstrates a fiery mass with an air-liquid level in the correct lower quadrant (bolt) and related provocative changes in the pericecal fat.

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APENDAGITIS EPIPLOICA Isquemia e inflamación causada por torsión o trombosis venosa de un apéndice epiploico TC: lesión oval de 1-4 cm de la grasa pericólica que rodea el mesenterio

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Epiploic appendagitis CT filter demonstrates a 2.5-cm-measurement mass (straight bolt) with fat constriction and mesenteric stranding. The mass is contiguous the plummeting colon (bended bolt) and was thought to speak to aggravation of the reference section epiploica on the premise of the CT discoveries.

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DIVERTICULITIS Diverticulosis 5-10% en mayores de 45 a 80% en mayores de 85 a Localización mas común: sigmoides y descendente Pequeños sacos de 2-3 a 20 mm

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Diverticulosis. Winding CT examine acquired with oral and intravenous differentiation material shows direct diverticulosis of the sigmoid colon.

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DIVERTICULITIS Engrosamiento segmentario Hiperhemia Cambios inflamatorios de la grasa pericólica DD enf. inflamatorias e isquemia, cáncer colon La clave de los DD es la presencia de divertículos y su localización (descendente y sigmoides) y la presencia de adenomegalias

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DIVERTICULITIS Complicaciones: absceso diverticular fístula colovesical perforación

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. Diverticulitis divider thickening in the sigmoid colon (bolts) with adjoining incendiary changes in the pericolic fat.

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Diverticular ulcer. direct divider thickening in the sigmoid colon ( S ) with critical adjoining incendiary changes and stranding of the pericolic fat. A 3-cm-distance across liquid gathering (*) is seen between the sigmoid colon and bladder ( B ), a finding perfect with a diverticular sore.

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. Colovesical fistula. direct divider thickening in the sigmoid colon ( S ) with neighboring provocative changes and stranding of the pericolic fat. Central divider thickening is found in the left back some portion of the bladder contiguous the kindled sigmoid (bolt). A direct measure of air is additionally present in the bladder, a finding perfect with a colovesical fistula.

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TIFLITIS Enterocolitis neutropénica Más frec. en pac. con QMT x LMA. También en frailty, linfoma, SIDA, tx renal TC: inflamación del ciego, colon ascendente e ileo terminal Complicaciones: rot, perforación (neumatosis, neumoperitoneo)

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Typhlitis. Drawing demonstrates the huge divider thickening that includes the cecum in patients with typhlitis.

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Typhlitis in a patient with LMA irritation and checked thickening of the cecum (sharpened stones), discoveries perfect with typhlitis. Negligible pericecal irritation is available in the contiguous mesenteric fat. The plunging colon ( D ) seems ordinary

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COLITIS POR RADIACION Radiación aguda: diarrea autolimitada TC no especifica engrosamiento wall painting locorregional Radiación crónica: 6-24 meses post RDT TC engrosamiento wall painting inespecífico en recto, alteración de la grasa, fibrosis perirrectal Complicación: fístula y estricturas

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Radiation fibrosis. Drawing demonstrates smooth divider thickening and fibrosis in the sigmoid colon, which contract the colonic lumen.

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Radiation proctitis in a 38-year-old lady who experienced radiation treatment for cervical growth. stamped thickening of the cervix and vagina (bended bolt) with corruption (open bolt), discoveries good with known locally intrusive cervical tumor. Stamped thickening of the rectum because of radiation colitis is additionally present (strong straight bolts).

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ENFERMEDAD INFLAMATORIA INTESTINAL La afectación del colon derecho e ID es típica de Crohn aunque puede afectar al izquierdo Al contrario la C ulcerosa afecta es típica del colon izquierdo o difusa y raramente afecta solamente el colon derecho

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ENFERMEDAD INFLAMATORIA INTESTINAL TC: ambos presentan engrosamiento wall painting (Crohn hasta 11-13 mm, C. ulcerosa hasta 7-8 mm) C ulcerosa es difusa y simétrica Crohn excéntrica y segmentaria con áreas respetadas

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ENFERMEDAD INFLAMATORIA INTESTINAL El signo del corona de baja atenuación (deposito de grasa submucosa) es más común en la C ulcerosa que en Crohn Proliferación de la grasa mesentérica es casi exclusiva del Crohn Adenomegalias child mas comunes en Crohn Complicaciones : abscesos-Crohn fistulas:enterovesicales, esterocutaneas, perianales, rectovaginales

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Crohn infection. CT examine acquired with oral difference material shows direct thickening of the terminal ileum (bended bolt) and cecum (straight bolt) with neighboring fiery changes in the pericolic fat.

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Ulcerative colitis in a 27-year-old man. Differentiate upgraded CT examine demonstrates insignificant diffuse thickening of the sigmoid colon with negligible provocative stranding. The rest of the colon was typical (not appeared).

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Crohn sickness. CT filter acquired with oral difference material shows low-lessening submucosal fat in the climbing colon (bolt) and fibrofatty expansion of nearby mesenteric fat (*).

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Ulcerative colitis. CT sweep of a patient with long-standing ulcerative colitis demonstrates a submucosal radiance of fat inside the rectum (bolt). There is likewise perirectal fibrofatty expansion (*).

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Crohn sickness. CT examine acquired with oral and intravenous difference material demonstrates a boil including the iliacus muscle (dark bolt) with a fistula to the foremost stomach divider (white bolt).

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COLITIS ISQUEMICA Causa común de dolor stomach en ancianos Causas: oclusión mesentérica vascular blood vessel o venosa, embólica, trombótica o invasiva tumoral Segmentaria o difusa El angulo esplénico y el rectosigma child más suceptibles de isquemia

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COLITIS ISQUEMICA Típicamente engrosamiento wall painting extenso Signo del doble corona TC muestra claramente el trombo en los casos de isquemia oclusiva o por invasión tumoral Neumatosis con o sin gas dentro de los vasos mesentéricos y portales es un signo ominoso sugestivo de rot e isquemia

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Diffuse ischemic colitis. CT examine acquired with oral and intravenous differentiation material shows diffuse, low-constriction thickening of the colonic divider (bolts). This is a case of the radiance sign .

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Segmental ischemic colitis. CT examine got with oral and intravenous differentiation material shows central thickening of two colonic circles in the left guts (bolts).

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Ischemic colitis in a 65-year-old man with stomach torment after surgery for pancreatic growth. Differentiate upgraded winding CT checks demonstrate stamped edema and thickening of the little entrail ( SB ) and colon ( C ) to the level of the splenic flexure, discoveries good with ischemia because of thrombus in the prevalent mesenteric vein (bolt in a ). There is likewise direct atherosclerosis of the aorta and ascites.

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. Ischemic colitis. Drawing demonstrates ischemia and pneumatosis including a fragment of colon.

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. Ischemic colitis in a fundamentally sick patient. CT filter acquired with oral and intravenous complexity material shows pneumatosis including the rising colon and transverse colon (bolts), discoveries good with ischemia and localized necrosis.

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COLITIS INFECCIOSA Bacterias: shigella, salmonella, yersinia, campilobacter, staphylococcus y trachomatis Fúngicas: histoplasmosis, mucormicosis y actinomices Virus: herpes, citomega, y rotavirus Amebiasis y TBC TC engrosamiento wall painting, con realce homogeneo

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Infectious colitis from Escherichia coli in a 52-year-old man with stomach torment and serious ridiculous the runs. CT filter acquired with oral and intravenous complexity material shows direct thickening of the colon (bolts) and incendiary changes in the mesenteric fat. E coli was refined from stool.

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COLITIS SEUDOMEMBRANOSA Resultado del crecimiento excesivo del Clostridium Difficile Caracterizado por seudomembranas (exudado de c. necróticas que desnudan la mucosa) Clásicamente dan pancolitis TC: engrosamiento circunferencial y excéntrico de la pared mas sporadic que en el Crohn Engrosamiento de aust

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