Case 336: Embryonal Sarcoma
25 year old man with cystic liver lesion on CT
CT: Necrotic, cystic
Multiphase CT of the liver shows biopsy proven embryonal sarcoma in segment 5. Mass is cystic/necrotic and has focal areas of solid tissue. This tumor component is hypovascular in the arterial phase and shows mild progressive enhancement in the portal venous and equilibrium phase. Note that progressive enhancement is not dense enough to call it fibrotic.