試題詳解

68. 關於 Liver Imaging Reporting and Data System (LI-RADS) system，下列敘述何者錯誤？
(1) LI-RADS 1 and LI-RADS2 indicate definitely and probably benign.
(2) LI-RADS 5 indicates definite HCC.
(3) “a small nodular area of CT/MR arterial phase hyperenhancement, which is
not present on other phases” is classified as LI-RADS 2.
(4) “a ≥2-cm encapsulated lesion with CT/MR arterial phase
hyperenhancement, but without “washout” is classified as LI-RADS 4.
(5) “a ≥2-cm lesion that enhances to the same degree as liver in the CT/MR
arterial phase, but enhances less (i.e., is hypoenhanced) in the postarterial phases” is classified as LI-RADS 4.
(A) (1)＋(4)
(B) (2)＋(3)
(C) (3)
(D) (2)＋(3)＋(5)

(E) (3)＋(5)