ABSTRACT
General adverse reactions to intravenous contrast agents are uncommon, although relevant due to the growing number of radiologic tests that use iodinated or gadolinium-based contrast agents. Although most of these reactions are mild, some patients can experience significant reactions that radiologists should know how to prevent and treat.
Subject(s)
Contrast Media/adverse effects , Contrast Media/classification , Drug-Related Side Effects and Adverse Reactions/etiology , Drug-Related Side Effects and Adverse Reactions/prevention & control , Humans , Kidney Diseases/chemically inducedABSTRACT
OBJECTIVE: To review the pathophysiology of Fontan-associated liver disease, its histologic changes, and its radiologic manifestations. CONCLUSIONS: Fontan-associated liver disease is the result of a set of structural and functional changes in the liver that occur secondary to hemodynamic changes brought about by Fontan surgery. The radiologic manifestations of Fontan-associated liver disease consist of changes in the size and shape of the liver, alterations in the signal intensity or pattern of enhancement, abnormalities in the vascular structures, and focal lesions, which include benign nodules with intense uptake in the arterial phase and hepatocellular carcinoma. Radiologists need to be familiar with this disease and its complications, because the number of patients who undergo Fontan surgery continues to increase, and these patients undergo an increasing number of imaging tests.
ABSTRACT
Intraductal papillary neoplasm of the biliary tract (B-IPN) is a scarcely known entity in our daily practice due to its low prevalence. Until its new definition in the fourth edition of the WHO classification of the digestive tract tumors of 2010 the disease was grouped under a heterogeneous and imprecise terminology. In addition, in recent years there has been progress in the knowledge of its etiopathogenesis, its natural history and its findings in image. The purpose of this paper is to review these data underlining the radiological findings of the disease and its differential diagnosis.
Subject(s)
Bile Duct Neoplasms/diagnostic imaging , Carcinoma, Ductal/diagnostic imaging , Carcinoma, Papillary/diagnostic imaging , Adenocarcinoma/diagnostic imaging , Adult , Aged , Bile Duct Neoplasms/classification , Bile Ducts/embryology , Bile Ducts, Extrahepatic/diagnostic imaging , Bile Ducts, Intrahepatic/diagnostic imaging , Carcinoma, Ductal/classification , Carcinoma, Papillary/classification , Cholangiocarcinoma/diagnostic imaging , Cholangiopancreatography, Magnetic Resonance , Cysts/diagnostic imaging , Diagnosis, Differential , Female , Humans , Lithiasis/diagnostic imaging , Liver Cirrhosis/diagnostic imaging , Liver Diseases/diagnostic imaging , Male , Middle Aged , Mucins , Pancreatic Ducts/embryology , Prognosis , Tomography, X-Ray ComputedABSTRACT
We present the case of a male with a fistula from an infrarenal aortic aneurysm to the left renal vein resolved with an endovascular prosthesis. Few cases have been reported in the literature.
Subject(s)
Aorta, Abdominal , Aortic Aneurysm, Abdominal/complications , Arteriovenous Fistula/complications , Renal Veins , Aged , Humans , MaleABSTRACT
In imaging studies, some developmental anomalies such as perisplenic accessory spleen are easily recognizable due to their high incidence. However, other, less common anomalies such as intrapancreatic accessory spleen, splenopancreatic fusion, splenogonadal fusion, heterotaxy, and wandering spleen, as well as acquired conditions such as splenosis, can pose diagnostic difficulties. This aim of this review is to show the imaging diagnosis and differential diagnoses of these uncommon splenic anomalies.