Neonatal cholestasis in cystic fibrosis

(A) Bile ductular proliferation with inspissated hypereosinophilic concretions and acute cholangitis (magnification 200x).
(B) Hypereosinophilic inspissated material within ducts and ductules, with focal atrophy of the ductular epithelium, and with acute cholangitis and bile ductule proliferation (magnification 400x).