RESUMEN
Due to ongoing technological advances, the range of clinical applications for diffusion-weighted MR imaging has expanded to now include abdominal pathology. Current applications for liver pathology include two main directions. First, oncologic imaging with detection, characterization and follow-up of lesions. Second, evaluation of diffuse liver diseases, including hepatic fibrosis. The diagnostic impact and role of diffusion-weighted MR imaging remain under investigation, but appear promising. Because of its short acquisition time, sensitivity, and additional information it provides, diffusion-weighted MR imaging should be included in routine liver imaging protocols.
Asunto(s)
Carcinoma Hepatocelular/diagnóstico , Imagen de Difusión por Resonancia Magnética , Aumento de la Imagen , Procesamiento de Imagen Asistido por Computador , Cirrosis Hepática/diagnóstico , Hepatopatías/diagnóstico , Neoplasias Hepáticas/diagnóstico , Hígado/patología , Medios de Contraste/administración & dosificación , Quistes/diagnóstico , Diagnóstico Diferencial , Estudios de Seguimiento , Hemangioma/diagnóstico , Humanos , Absceso Hepático/diagnóstico , Neoplasias Hepáticas/secundario , Sensibilidad y EspecificidadRESUMEN
Surgery for the treatment of colorectal diseases has been evolving rapidly recently. In addition to classical surgical procedures (colectomy, abdominoperineal resection), new surgical procedures include coloproctectomy with creation of an ileoanal anastomosis and ileal pouch, pelvic reconstructions (omentoplasty, placement of myocutaneous flaps) and creation of different colic anastomoses after anterior rectal resection. Even if computed tomography and fluoroscopic contrast examinations are still commonly used to assess postoperative changes and complications, especially infections, pelvic magnetic resonance imaging is useful to depict postoperative changes, detect complications such as fistulas and tumor recurrence in patients who have undergone surgery for primary or recurrent rectal disease. The main surgical techniques, their respective indications and postsurgical imaging features will be discussed. The main complications and imaging work-up will also be reviewed.
Asunto(s)
Adenocarcinoma Mucinoso/cirugía , Colon/cirugía , Neoplasias del Colon/cirugía , Imagen por Resonancia Magnética/métodos , Complicaciones Posoperatorias/diagnóstico por imagen , Complicaciones Posoperatorias/diagnóstico , Neoplasias del Recto/cirugía , Recto/cirugía , Tomografía Computarizada por Rayos X/métodos , Adenocarcinoma Mucinoso/diagnóstico , Adenocarcinoma Mucinoso/diagnóstico por imagen , Adulto , Colectomía/métodos , Neoplasias del Colon/diagnóstico , Neoplasias del Colon/diagnóstico por imagen , Reservorios Cólicos , Medios de Contraste , Femenino , Fluoroscopía , Estudios de Seguimiento , Humanos , Laparoscopía , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia , Recurrencia Local de Neoplasia/diagnóstico , Recurrencia Local de Neoplasia/diagnóstico por imagen , Proctocolectomía Restauradora , Neoplasias del Recto/diagnóstico , Neoplasias del Recto/diagnóstico por imagen , Factores de TiempoRESUMEN
Solitary fibrous tumor (SFT) is commonly found on serosal surfaces, and is rarely localized in the liver. There are benign and malignant variants of hepatic SFT. We report a new case of benign SFT. Our patient, a 63-year old woman, who has been followed for 5 years for an asymptomatic liver mass, was admitted for abdominal pain. Ultrasonography (US), CT, MR Imaging and angiography showed the liver mass with typical imaging features, situated in the right hepatic lobe with blood supply from the hepatic artery. Histopathological examination demonstrated a highly vascularized tumor, composed of short spindle cells alternating with hypocellular collagenous regions, with a hemangiopericytoma-like vascular pattern. The immunohistochemical staining was positive for CD 34. Tumor resection was performed. Follow-up 8 years after the resection showed no tumor recurrence or metastasis, thus confirming the initial diagnosis of benign SFT.
Asunto(s)
Neoplasias Hepáticas/diagnóstico , Neoplasias de Tejido Fibroso/diagnóstico , Femenino , Humanos , Persona de Mediana EdadRESUMEN
Digestive haemorrhage following supramesocolic abdominal surgery (cephalic duodenopancreatectomy, cholecystectomy, total oesogastrectomy) is a rare but serious complication, which can be life-threatening. Improvement in scanning techniques has made it possible to modify the diagnostic strategy and improve the therapeutic management of the patients. The aim of this iconographic review is to recall the causes of digestive haemorrhage following supramesocolic surgery and to illustrate the dominant role of tomodensitometry in diagnosing it and in planning and controlling the efficacy of endovascular treatment.
Asunto(s)
Endoscopía Gastrointestinal , Hemorragia Gastrointestinal/diagnóstico por imagen , Hemorragia Gastrointestinal/terapia , Aumento de la Imagen/métodos , Procesamiento de Imagen Asistido por Computador , Tomografía Computarizada Multidetector , Complicaciones Posoperatorias/diagnóstico por imagen , Complicaciones Posoperatorias/terapia , Adenocarcinoma/diagnóstico por imagen , Adenocarcinoma/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Aneurisma Falso/diagnóstico por imagen , Aneurisma Falso/terapia , Aneurisma Roto/diagnóstico por imagen , Aneurisma Roto/terapia , Angiografía , Aortografía , Colecistectomía , Embolización Terapéutica , Esofagectomía , Extravasación de Materiales Terapéuticos y Diagnósticos/diagnóstico por imagen , Extravasación de Materiales Terapéuticos y Diagnósticos/terapia , Femenino , Gastrectomía , Hemorragia Gastrointestinal/etiología , Hemobilia/diagnóstico por imagen , Hemobilia/etiología , Hemobilia/terapia , Arteria Hepática/diagnóstico por imagen , Humanos , Masculino , Mesocolon/cirugía , Persona de Mediana Edad , Neoplasias Pancreáticas/diagnóstico por imagen , Neoplasias Pancreáticas/cirugía , Pancreaticoduodenectomía , Pancreatitis Crónica/diagnóstico por imagen , Pancreatitis Crónica/terapia , Complicaciones Posoperatorias/etiología , Arteria Esplénica/diagnóstico por imagen , StentsAsunto(s)
Neoplasias Óseas/diagnóstico por imagen , Epífisis/diagnóstico por imagen , Húmero/diagnóstico por imagen , Inestabilidad de la Articulación/diagnóstico por imagen , Lipoma/diagnóstico por imagen , Articulación del Hombro/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Adulto , Diagnóstico Diferencial , Humanos , Masculino , Osteólisis/diagnóstico por imagen , Osteosclerosis/diagnóstico por imagenRESUMEN
We report two cases of acute aortic thrombosis in cancer patients. Aortic thrombosis is rare in the absence of atherosclerosis, dissection, or aneurysm. On the one hand, hypercoagulable state related to cancer is a well-known risk factor for venous thrombosis. On the other hand, arterial thrombosis has been rarely reported in cancer patients. Recognition of aortic thrombosis is important because it is a dangerous condition; furthermore, it exposes at the patient to complications such as peripheral embolism. In addition, anticoagulation can result in resolution of thrombosis.