The Imaging Findings of Small(< or =15mm) Portal Defects in the Liver on CT Arterial Portography: Evaluationwith CT Hepatic Arteriography and Lipiodol CT
Journal of the Korean Radiological Society
;
: 921-927, 1999.
Article
in Korean
| WPRIM
| ID: wpr-41861
ABSTRACT
PURPOSE:
To assess the malignant potential of small(< or =15mm) portal defects seen on CT arterial portography,the findings of CT hepatic arteriography and lipiodol CT CT were reviewed. MATERIALS ANDMETHODS:
In 91 patientswho underwent both CTAP and CTHA, small portal defects were re-viewed for frequency, multiplicity and location. Weprospectively evauluated changes in the size and enhance-ment pattern of malignant lesions on follow up CTaccording to density on CTHA, location, lipiodol deposits on lipiodol CT, and multiplicity.RESULTS:
Among the 91patients, 102 small defects were defected in 42 patients(46%). Small portal defects were benign, malignant, and ofundetermined malignant potential in 77%, 20% and 3% of cases, respectively. Small portal defects that werehyperattenuated on CTHA, and lipiodol deposits on lipiodol CT, were malignant in 42% and 70% of cases,respectively. Location and multiplicity did not show statistically significant variation between benign andmalignant defects.CONCLUSION:
Small portal defects are common and there is a high probability that portaldefects smaller than 15mm are benign, even in patients with a known hepatic mass and defect that washyperattenuated on CTHA. If a small defect showed lipiodol deposit on lipiodol CT, malignancy must be suspected.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Angiography
/
Portography
/
Follow-Up Studies
/
Ethiodized Oil
/
Liver
Type of study:
Diagnostic study
/
Observational study
/
Prognostic study
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Radiological Society
Year:
1999
Type:
Article
Similar
MEDLINE
...
LILACS
LIS