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Inflammatory pseudotumor of the liver: radiologic-pathologic correlation
M Abehsera1, V Vilgrain, J Belghiti
1Department of Radiology, Erasme Hospital, University Clinics of Brussels, Belgium.
Journal of Computer Assisted Tomography
|January 1, 1995
Summary
Imaging features of liver inflammatory pseudotumor were correlated with pathology. Key findings include a homogeneous avascular appearance on CT, isointense T2-weighted MRI signal, and a capsule, aiding diagnosis.
Area of Science:
- Radiology
- Pathology
- Hepatology
Background:
- Inflammatory pseudotumor (IPT) is a rare benign liver lesion.
- Accurate diagnosis is crucial to differentiate from malignant tumors.
Observation:
- Three cases of liver IPT were evaluated using sonography, CT, and MRI.
- All lesions were surgically resected for histopathologic correlation.
Findings:
- Sonography showed hypoechoic, well-circumscribed masses.
- CT revealed homogeneous, hypodense lesions with calcifications and no postcontrast enhancement.
- MRI demonstrated hypointense T1 and isointense T2 signals.
- A perilesional rim, correlating with a fibrous capsule, was noted on CT/MRI.
Implications:
- The imaging findings, including homogeneous avascularity on CT, isointense T2 MRI signal, and a capsule, are characteristic of liver IPT.
- These imaging features, when correlated with histopathology, can aid in the diagnosis of inflammatory pseudotumor.