Liver with regular contours and normal shape and size. Numerous oval hypoechoic lesions with ill-defined margins are observed, without vascularization on color Doppler and without mass effect. They involve both lobes. The largest lesion is located in the periphery of segment 7 and measures 10 mm.
Liver with regular contours and normal shape and size. Numerous oval hypoechoic lesions with ill-defined margins are observed, without vascularization on color Doppler and without mass effect. They involve both lobes. The largest lesion is located in the periphery of segment 7 and measures 10 mm.
Liver with regular contours and normal shape and size. Numerous oval hypoechoic lesions with ill-defined margins are observed, without vascularization on color Doppler and without mass effect. They involve both lobes. The largest lesion is located in the periphery of segment 7 and measures 10 mm.
A solid intraventricular lesion is identified in the right ventricle, with ill-defined margins and heterogeneous density and enhancement. Its boundaries and relationship with the ventricular walls cannot be clearly defined, as a gated study was not available.
Multiple solid pulmonary micronodules and nodules are identified, well-defined with irregular margins and surrounded by a ground-glass halo, with a random distribution.
CT of the abdomen and pelvis was performed including non-contrast, late arterial, and portal venous phases.
The liver is enlarged for the patient’s age, with hepatomegaly measuring 132 mm in the right midclavicular line (expected value for age: 86 mm). There are multiple solid nodular lesions, diffusely distributed throughout both hepatic lobes, showing enhancement in the late arterial phase and appearing hypodense on the portal venous phase. The lesions are rounded and poorly defined.
Question
Based on the imaging findings, which etiology is most likely?
