Search results for “abdominal ct ”
1,210 results found
Article
Bochdalek hernia
Bochdalek hernias , also known as pleuroperitoneal hernias, (alternative plural: herniae) are the commonest type of congenital diaphragmatic hernia. They occur posteriorly and are due to a defect in the posterior attachment of the diaphragm when there is a failure of pleuroperitoneal membrane cl...
Article
Enteric contrast medium (CT)
Enteric contrast media can be given to patients before their CT exam to improve its diagnostic accuracy. Historically, a combination of oral and intravenous contrast media were always given prior to a CT abdomen. Contemporaneously, improved CT scanners mean that oral contrast agents are no longe...
Article
CT enteroclysis (protocol)
Computed tomographic (CT) enteroclysis refers to a hybrid technique that combines the methods of fluoroscopic intubation-infusion small bowel examinations with that of abdominal CT.
Indications
CT enteroclysis is complementary to capsule endoscopy in the elective investigation of small-bowel d...
Article
Ascites
Ascites (hydroperitoneum is a rare synonym) is defined as an abnormal amount of intraperitoneal fluid.
Terminology
Ascites (plural is the same word) tends to be reserved for relatively sizable amounts of peritoneal fluid. The amount has not been defined formally. It is noted physiologically, h...
Article
Lung bases
Anatomically, the lung bases refer literally to the inferior concave surfaces of the lungs which directly contact the hemidiaphragms.
However many radiologists, and other clinicians, use the term more generally to refer to the basal region of the lung, which like the lower zones, has no formal ...
Article
Multisystem inflammatory syndrome in children
Multisystem inflammatory syndrome in children (MIS-C) or pediatric inflammatory multisystem syndrome (PIMS) is an emerging pediatric disease occurring after prior SARS-CoV-2 infection and is therefore strongly associated with the ongoing COVID-19 pandemic.
Terminology
The World Health Organiz...
Article
Cushing syndrome
Cushing syndrome is due to the effects of excessive glucocorticoids, which may be exogenous or endogenous.
Terminology
Cushing disease refers to glucocorticoid excess solely due to an adrenocorticotropic hormone-secreting pituitary adenoma, while Cushing syndrome encompasses all etiologies of ...
Article
Management of Incidental Adrenal Masses: American College of Radiology white paper
The Management of Incidental Adrenal Masses revised in 2017 by the Adrenal Subcommittee of the Incidental Findings Committee of the American College of Radiology is an algorithm for the management of patients who are:
adults (≥18 years old)
asymptomatic for adrenal pathology
referred for imag...
Article
Colorectal cancer (summary)
This is a basic article for medical students and other non-radiologists
Colorectal cancer, also called colorectal carcinoma (CRC), is the most common cancer of the gastrointestinal tract and the second most frequently diagnosed malignancy in adults. CT and MRI are the modalities most frequently...
Article
Acute pyelonephritis
Acute pyelonephritis (plural: acute pyelonephritides) is a bacterial infection of the renal pelvis and parenchyma most commonly seen in young women. It remains common and continues to have significant morbidity in certain groups of patients.
Epidemiology
The incidence of acute pyelonephritis p...
Article
CT lumbar spine (protocol)
The CT lumbar spine or L-spine protocol serves as an examination for the assessment of the lumbar spine. As a separate examination, it is most often performed as a non-contrast study. It might be combined or simultaneously acquired with a CT abdomen. It also forms a part of a polytrauma CT or mi...
Article
Renal transplant
Renal transplantation is one, if not the most, common transplant procedures undertaken worldwide. Consequently, purposeful and incidental imaging of renal transplants and renal transplant-related complications are increasingly common. These include acute renal transplant rejection and chronic re...
Article
Castleman disease
Castleman disease, also known as angiofollicular lymph node hyperplasia or giant lymph node hyperplasia, is an uncommon benign B-cell lymphoproliferative condition. It can affect several regions of the body but is commonly described as a solitary mediastinal mass.
There are two distinct subtype...
Question
Question 1635
A 10-year-old boy presents in the emergency department with complaints of sudden right lower abdominal pain. CT image is presented. What is the most likely diagnosis?
Article
Bowel and mesenteric trauma injury grading
A number of bowel and mesenteric injury grading systems have been proposed and validated for trauma to the bowel and/or mesentery based on CT and clinical parameters.
Classifications
RAPTOR 1
The RAdiographic Predictors of Therapeutic intervention score predicts the need for early therapeutic...
Article
Appendicolith
An appendicolith is a calcified deposit within the appendix. They are present in a large number of children with acute appendicitis and may be an incidental finding on an abdominal radiograph or CT. Incidence may be increased among patients with a retrocecal appendix. Overall they are seen in 10...
Article
Endometrioma
Endometriomas, also known as chocolate cysts or endometriotic cysts, are a localized form of endometriosis and are usually within the ovary. They are readily diagnosed on ultrasound, with most demonstrating classical radiographic features.
Epidemiology
These occur in up to 10% of women of rep...
Article
Seatbelt sign (abdomen)
The seatbelt sign is both a clinical and radiological sign. It is simply the presence of ecchymosis and/or abraded skin in the distribution of a seatbelt (i.e. horizontal and/or diagonal) extending across the abdomen evident after a motor vehicle accident.
Epidemiology
A positive abdominal sea...
Article
Small bowel perforation
Small bowel (SB) perforation is an acute pathological condition resulting from a discontinuity of the small bowel wall secondary to different etiologies with subsequent leakage of intestinal gas and contents into the peritoneal cavity.
Clinical presentation
clinical diagnosis maybe difficult, ...
Article
Abdominal wall injury
Abdominal wall injuries comprise a set of injuries of the abdominal wall and include different forms of muscle injuries, traumatic hernias and injuries to the subcutaneous tissue. They are often overshadowed by the attention to associated “more severe” abdominal visceral injuries.
Epidemiology...
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