Ultrasound images Adenoma

Ultrasound images The hepatic adenoma is a benign focal lesion consisting of a cluster of atypical liver cells (Fig. A& B). Within this, there may be pools of bile or focal areas of haemorrhage or necrosis. This gives rise to a heterogeneous, patchy echotexture. The smaller ones tend to be homogeneous with a smooth texture.
They are usually less reflective than a haemangioma and may have similar reflectivity to the surrounding liver parenchyma.
Larger adenomas may contain vigorous arterial flow on Doppler, but this is not pathognomonic and does not differentiate it from a malignant lesion.
fig. A & B
(A) Ultrasound images Adenoma in segment 5 in a young
woman on the oral contraceptive pill. (B) An unusual
example of cystic degeneration in a large adenoma.
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