Hepatoblastoma CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Nawal Muazam M.D.[2]

Overview

Abdominal CT scan may be helpful in the diagnosis of hepatoblastoma. Findings on CT scan suggestive of hepatoblastoma include well defined heterogeneous mass, frequent areas of necrosis and hemorrhage, and chunky dense calcifications.

CT scan

Abdominal CT scan may be helpful in the diagnosis of hepatoblastoma. Surgeons prefer an angiographic or biphasic CT scan because of better depiction of the hepatic arterial, portal venous and hepatic vein and other liver structures.

• On abdominal CT scan, hepatoblastoma is characterized by:
  • Usually seen as a well defined heterogeneous mass, which is usually hypoattenuating compared to surrounding liver.
  • Frequently there are with areas of necrosis and hemorrhage. Chunky, dense calcifications may be seen in approximately 40% of cases.
  • CT is also able to evaluate the lungs for metastases and for nodal enlargement.
  • Spiral CT scan findings of hypervascular lesions in the liver with delayed contrast excretion are highly suggestive of a malignant liver tumor.
• Concerns about radiation exposures in pediatrics has changed this modality in favor of MRI, although MRI is much lengthy exam than CT has the advantage of multiplanar soft-tissue characterization, and when diffusion-weighted imaging techniques are used, MRI is exquisitely sensitive for detecting tiny liver lesions.

Gallery

• 

  _{CT shows a large heterogenous predominantly hypodense mass lesion arising from right lobe of liver with a chunky calcification.}

• 

  _{CT shows a large heterogenous predominantly hypodense mass lesion arising from right lobe of liver with a chunky calcification.}

References

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