209 results found
Article
Tracheobronchial tree
The tracheobronchial tree is the branching tree of airways beginning at the larynx and extending inferiorly and peripherally into the lungs as bronchioles. The luminal diameter decreases as the branching increases more peripherally into the lungs. The walls of the airway down to the level of the...
Article
Polycystic liver disease
Polycystic liver disease (PCLD) is a hereditary condition that may arise either in patients with autosomal dominant polycystic kidney disease (ADPKD) or in patients with a different genetic mutation that results solely in autosomal dominant polycystic liver disease.
Epidemiology
75-90% of pati...
Question
Question 184
A liver laceration involves segments 5, 6, 7 and 8. What American Association for Surgery in Trauma (AAST) grade is it?
Article
Hepatic pseudolesion near falciform ligament
Hepatic pseudolesions near the falciform ligament show abnormal attenuation without mass effect. They may be seen on contrast-enhanced CT scans as either a region of high or low attenuation relative to the rest of the liver. They are typically located in the medial segment of the left lobe of th...
Article
Accessory hepatic sulci
Accessory hepatic grooves (also known as accessory hepatic fissures or accessory hepatic sulci) are a common anatomic variant, with majority of accessory grooves occurring over the diaphragmatic surface of the liver 1,2.
Several hypotheses have been made regarding the process by which an access...
Article
Left hepatic artery
The left hepatic artery (LHA) is formed when the proper hepatic artery (PHA) bifurcates. The hepatic arteries provide 25% of the blood supply and 50% of the oxygen supply to the liver.
Gross anatomy
The proper hepatic artery bifurcates into the left and right hepatic arteries at or before reac...
Article
Inferior phrenic artery
The inferior phrenic arteries (IPAs) are paired branches of the abdominal aorta/coeliac trunk supplying the diaphragm. Their importance lies with the fact that the right inferior phrenic artery is the most common extrahepatic arterial supply of a hepatocellular carcinoma.
Summary
origin: abdo...
Article
Pseudocirrhosis
Pseudocirrhosis is a radiological term used to convey the imaging findings of cirrhosis but emphasises that it occurs in the setting of hepatic metastases. It is most commonly reported following chemotherapeutic treatment of breast cancer metastases, although it has also been reported before tre...
Article
Ciliated hepatic foregut cyst
Ciliated hepatic foregut cysts are a very rare type of hepatic cyst, with non-specific radiological features. They are usually benign, but rare cases of malignant degeneration (to squamous cell carcinoma) have also been reported.
Epidemiology
They are more often seen in adults, although a few...
Article
Right hepatic artery
The right hepatic artery (RHA) is formed when the proper hepatic artery (PHA) bifurcates. The hepatic arteries provide 25% of the blood supply and 50% of the oxygen supply to the liver.
Gross anatomy
The proper hepatic artery bifurcates into the right and left hepatic arteries at or before rea...
Case
Hepatic segmental torsion
Published
30 Jun 2017
92% complete
CT
Annotated image
Article
Point-of-care ultrasound (curriculum)
The point-of-care ultrasound (PoCUS) curriculum is one of our curriculum articles and aims to be a collection of articles that represent the core applications of ultrasonography in a point-of-care setting.
Point-of-care ultrasound refers to ultrasonography which may be simultaneously performed,...
Case
Arterial occlusive small bowel mesenteric ischaemia
Published
23 May 2023
95% complete
X-ray
Annotated image
CT
Case
Autosomal dominant hepato-renal polycystic disease (ADHRPD)
Published
26 Nov 2022
94% complete
Ultrasound
Article
Bile duct stricture
Bile duct strictures are problematic in terms of management and distinction between benign and malignant.
Pathology
Aetiology
There are numerous causes of biliary duct strictures, including 1,2:
malignant
cholangiocarcinoma
involvement by pancreatic head adenocarcinoma
involvement by ampu...
Article
AAST liver injury scale
The AAST (American Association for the Surgery of Trauma) liver injury scale, revised in 2018, is the most widely used liver injury grading system 3.
The 2018 update incorporates "vascular injury" (i.e. pseudoaneurysm, arteriovenous fistula) into the imaging criteria for visceral injury 3.
Cla...
Case
Hepatic pseudolesion secondary to superior vena cava stenosis
Published
09 May 2023
75% complete
CT
Annotated image
Case
Hepatocellular carcinoma
Published
26 Apr 2014
65% complete
MRI
Case
Hepatocellular carcinoma in a patient with alpha-1 antitrypsin deficiency
Published
13 Mar 2018
87% complete
CT
Annotated image
Case
Mass-forming intrahepatic cholangiocarcinoma
Published
02 Nov 2019
89% complete
CT
Ultrasound
MRI
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