4. Concerning fibrolamellar hepatocellular carcinoma, which of the following is (are) true?
(X-type question - select all correct answers)
A) It is not associated with underlying cirrhosis or other risk factors.
B) The test for serum a-fetoprotein is negative.
C) Spontaneous rupture does occur but in less than 10 of cases.
D) Overall resectability is the same as for a conventional hepatoma.
E) A prominent depressed central fibrous scar is characteristic.
