Had Ct scan and it said 'low attenuation on liver'

As quoted from the AJR site, "Cystic liver lesions (low attenuation lesions), or fluid-containing lesions of the liver, are commonly encountered findings on radiologic examinations that may represent a broad spectrum of entities ranging from benign developmental cysts to malignant neoplasms."

Read More: http://www.ajronline.org/doi/full/10.2214/AJR.10.5292

It is certainly something that should be discussed with your doctor so you don't worry yourself too much!!

Good luck!

Mark