<unk>  refers to a state where<unk><unk>  levels are outside of the reference range.
There are two categories of AFP tests:  tests performed on serum (blood plasma), and tests performed on amniotic fluid.  Tests performed on serum are further categorized by the reason for performing the test:  maternal serum, adult tumor marker, and pediatric tumor marker.
Elevated alpha-fetoprotein
Ground glass opacification on CT
Cephalization on chest x-ray
Liver mass
Antinuclear antibodies
Plasmacytosis
Monoclonal gammopathy of undetermined significance x ray
Monocytosis