Photomicrographs of mouse left liver-lobe sections stained with haematoxylin and
eosin (H&E). Female B6C3F1 mice were treated by gavage with 0 (A–C) or 15
mg/kg bw furan (D–F) in corn oil. The animals were sacrificed 24 h after receiving
a single oral dose (A, D), three weekly doses (B, E) or five daily doses for 6 weeks (C,
F). Furan treatment caused hepatocellular necrosis admixed with reactive leukocytes (panel
D), an accentuated lobular pattern and minimal sub-capsular hepatocellular necrosis
admixed with reactive leukocytes (panel E), and occasional atypical mitotic figures
including multipolar mitoses in cytomegalic and normal hepatocytes (Panel F, and Panel F
upper inset, respectively), and lag-type mitoses with nonattached condensed chromatin
(Panel F, lower inset).