Hepatocellular adenoma CT

Hepatocellular adenoma Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Hepatocellular adenoma from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Study of Choice
History and Symptoms
Physical Examination
Laboratory Findings
Electrocardiogram
X-ray
Echocardiography and Ultrasound
CT scan
MRI
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Surgery
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Hepatocellular adenoma CT On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Hepatocellular adenoma CT All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Hepatocellular adenoma CT
CDC on Hepatocellular adenoma CT
Hepatocellular adenoma CT in the news
Blogs on Hepatocellular adenoma CT
Directions to Hospitals Treating Hepatocellular adenoma
Risk calculators and risk factors for Hepatocellular adenoma CT

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]

CT

• Fat or hemorrhage can easily be identified on unenhanced images, and delayed-phase images demonstrate the tendency for fibrotic components to enhance and retain contrast material.

• Because adenomas consist almost entirely of uniform hepatocytes and a variable number of Kupffer cells, most adenomas are nearly isoattenuating relative to normal liver on unenhanced, portal venous–phase, and delayed-phase images.

• In patients with fatty liver, adenomas are hyperattenuating at all phases of contrast enhancement and on unenhanced images as well.

• Small hepatocellular adenomas enhance rapidly and are hyperattenuating relative to the liver.

• Excluding lesions with acute or old tumor hemorrhage and fat deposition, hepatocellular adenoma demonstrated homogeneous or nearly homogeneous enhancement in approx 80% of cases.

• The enhancement usually does not persist in adenomas because of arteriovenous shunting.

• Larger hepatocellular adenomas may be more heterogeneous than smaller lesions, and their CT appearance is less specific.

References

Template:WikiDoc Sources