Search results for “abdominal ct ”
85 results found
Question
Question 2682
In abdominal CT for patients with no bowel symptoms, in what approximate percentage of studies is the bowel wall fat halo sign seen as an incidental finding?
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
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
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
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...
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
Midgut volvulus
Midgut volvulus is a complication of bowel malrotation usually seen in neonates and infants. Presentation is usually with proximal small bowel obstruction and bilious vomiting. Without prompt treatment, there is a real and significant risk of small bowel ischemia, significant associated morbidit...
Article
Incarcerated
Incarcerated (also referred to as irreducible) is used to describe herniae, in which their contents are unable to pass back through the hernial opening to their anatomical site of origin 5.
Incarceration is a risk factor for bowel obstruction and strangulation, and therefore usually necessitat...
Article
Pulmonary sequestration
Pulmonary sequestration, also called accessory lung, refers to the aberrant formation of segmental lung tissue that has no connection with the bronchial tree or pulmonary arteries. It is a bronchopulmonary foregut malformation (BPFM).
There are two types:
intralobar sequestration (ILS)
extral...
Question
Question 1621
This 35-year-old woman presented with abdominal pain and a prior history of seizures. Ultrasound examination showed large heterogeneous lesions in both kidneys. CT is performed. Abdominal MRI performed 2 days later is also provided. What is the most likely diagnosis?
Article
Acute appendicitis
Acute appendicitis is an acute inflammation of the vermiform appendix. It is a very common condition in general radiology practice and is one of the main reasons for abdominal surgery in young patients. CT is the most sensitive modality to detect appendicitis.
Terminology
Acute appendicitis (p...
Article
Heterotaxy syndrome
Heterotaxy syndromes refer to abnormal left/right distribution of thoracic and abdominal organs that is neither situs solitus nor situs inversus. They are frequently associated with congenital heart disease and other visceral abnormalities.
Terminology
Isomerism implies mirrored organs, and ca...
Question
Question 1623
A 45-year-old patient presents with abdominal pain and vomiting. A CT of the abdomen is performed. An arterial-phase image is shown. What is the most likely diagnosis?
Article
Acute abdominal pain
Acute abdominal pain is a common acute presentation in clinical practice. It encompasses a very broad range of possible etiologies and diagnoses, and imaging is routinely employed as the primary investigative tool in its modern management.
Terminology
A subgroup of patients with acute abdomina...
Article
Fetus in fetu
Fetus-in-fetu is an extremely rare abnormality that occurs secondary to abnormal embryogenesis in a monochorionic diamniotic pregnancy where a non-viable fetus becomes enclosed within a normally developing fetus.
Epidemiology
Fetus-in-fetu is very rare, with an incidence of 1/500,000 live birt...
Article
Transient intussusception
Transient or uncomplicated intussusception is known to occur in adults and children and can be considered physiological. Given the condition's transient nature, it is probably underdiagnosed. The main factors distinguishing transient from intussusceptions requiring surgical intervention are abse...
Article
Omphalocele
Omphaloceles, also known as exomphalos (rare plural: exomphali), are congenital midline abdominal wall defects at the base of the umbilical cord insertion, with herniation of gut (or occasionally other structures) out of the fetal abdomen.
Epidemiology
The estimated occurrence can be up to 1:4...
Question
Question 2080
A 10-year-old boy presents with a history of abdominal pain and constipation. A contrast-enhanced CT of the abdomen and pelvis was acquired. A single CT coronal image is provided. The boy is at risk of developing which of the following conditions?
Article
Neonatal aortic thrombosis
Neonatal aortic thrombosis is a rare life-threatening condition that can affect neonates admitted to the neonatal intensive care unit (NICU).
Epidemiology
The incidence of neonatal aortic thrombosis is 0.2% of neonates admitted to the NICU.
Risk factors
umbilical arterial catheters (UAC): ~8...
Article
Burkitt lymphoma (abdominal manifestations)
Abdominal manifestations of Burkitt lymphoma occur in the non-pandemic variant of Burkitt lymphoma. For a general discussion of Burkitt lymphoma, and for links to other system specific manifestations, please refer to Burkitt lymphoma.
Whenever Burkitt lymphoma presents, it is predominantly an e...
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