Fig. 1. Preoperative unenhanced abdominal computed tomography. Contrast was injected into the drained cyst in a previous study. (A, B) Axial views of segments 7 and 8; (C) large cyst in a small segment 4 with viable parenchyma in segments 5 and 6. (D) Digital reconstruction showing parenchyma in gray, liver cysts in orange, drain in white, and large, partially drained central cyst in pink.