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Portal vein thrombosis: imaging findings
H R Parvey1, B Raval, C M Sandler
1Department of Radiology, University of Texas Health Science Center, Houston 77026.
AJR. American Journal of Roentgenology
|January 1, 1994
Summary
Portal vein thrombosis (PVT) is a complication of liver disease, cancer, or inflammation. Recognizing subtle imaging findings is crucial for radiologists to diagnose PVT, which can lead to serious complications.
Area of Science:
- Radiology
- Gastroenterology
- Internal Medicine
Background:
- Portal vein thrombosis (PVT) often arises secondary to cirrhosis, abdominal malignancies, or inflammatory conditions.
- Less common causes include myeloproliferative disorders, connective tissue diseases, and inflammatory bowel disease.
- PVT can precipitate or worsen portal hypertension, leading to variceal bleeding and hypersplenism.
Purpose of the Study:
- To emphasize the importance of recognizing imaging findings suggestive of PVT.
- To highlight the subtle and nonspecific clinical presentation of PVT.
- To underscore the critical role of radiologists in diagnosing PVT.
Main Methods:
- Review of clinical and imaging data associated with PVT.
- Analysis of common and uncommon etiologies of PVT.
- Correlation of PVT with clinical sequelae and management implications.
Main Results:
- PVT is frequently associated with pre-existing liver disease, malignancy, and inflammation.
- PVT can complicate surgical procedures like shunt surgery and liver transplantation.
- Subtle or nonspecific symptoms often mask PVT, making imaging diagnosis paramount.
Conclusions:
- Radiologists play a key role in identifying PVT, often before clinical manifestation.
- Familiarity with PVT imaging findings is essential for timely diagnosis and management.
- Prompt recognition of PVT can mitigate risks of severe complications like variceal hemorrhage.