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Undifferentiated (embryonal) sarcoma of the liver: radiologic-pathologic correlation
Radiology
|October 1, 1986
Summary
Undifferentiated (embryonal) sarcoma (UES) is a rare malignant liver tumor in young adults. Radiologic findings can mimic benign lesions, highlighting the need for radiologist awareness due to its poor prognosis.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Undifferentiated (embryonal) sarcoma (UES) is a rare malignant mesenchymal hepatic tumor.
- It primarily affects older children and young adults.
Purpose of the Study:
- To correlate radiologic and pathologic findings of UES.
- To increase radiologist awareness of this malignant hepatic mass.
Main Methods:
- Retrospective review of 14 cases of UES.
- Correlation of imaging findings (sonography, CT, angiography) with gross pathology.
Main Results:
- Radiologic findings varied from solid to cystic appearances.
- Sonography often showed large masses with anechoic spaces or cystic components.
- CT revealed hypodense masses with hyperdense septa and a peripheral rim.
- Angiography demonstrated typically hypovascular patterns, but hyper- and avascular patterns were also observed.
Conclusions:
- UES can present as a large cystic hepatic mass, potentially mistaken for a benign lesion.
- Radiologists must be familiar with UES imaging characteristics due to its poor prognosis (median survival < 1 year).