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C-1294 - Portal thrombosis: imaging aspects, cavernous transformation and secundary biliar alterations

M. Gérard; Namur/BE Type: Educational Exhibit
Area of Interests: Vascular, Biliary Tract / Gallbladder, Abdomen
Imaging Techniques: MR, CT-Angiography, CT
Procedure: Radiobiology
Special Focuses: Cirrhosis, Education and training, Embolism / Thrombosis
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Learning objectives: To recognise CT and MR signs of portal vein thrombosis (PVT) To be aware of PVT-related liver and vascular alterations To differenciate PVT-related venous collaterals from other causes of abdominal venous collaterals

Background: Portal vein thrombosis   The main causes of portal vein thrombosis (PVT) are hepatocellular carcinoma, liver metastasis, pancreatitis, cirrhosis, liver transplantation and splenectomy.  Other causes of PVT are pancreatic cancer, abdominal inflammation (appendicitis, diverticulitis, p[...]

Findings and procedure details: Portal Thrombosis: Imaging Aspects Portal vein thrombosis's signs and symptoms can be subtle, nonspecific or overshadowed by the underlying illness. It is imperative to know the imaging findings of portal vein thrombosis.   CT imaging Unenhanced-CT is usually non-contributory : IV contr[...]

Conclusion: Portal vein thrombosis occurs in various conditions (cirrhosis and oncologic liver disease, chronic pancreatitis, pancreas cancer, splenectomy and abdominal infections). Imaging techniques (contrast-enhanced CT, MR and sonography) permit detection of portal vein thrombosis and its complications. PVT[...]

Personal information:

References: 1. Portal vein thrombosis: imaging findings. HR Parvey, AJR 1994;162 2. MR imaging of portal venous thrombosis: correlation with CT and sonography. K.Zirinsky. AJR  1988; 150 3. Clinical Observations. Biliary Abnormalities Associated with Portal Biliopathy: Evaluation on MR Cholangiog[...]

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