Plasmapheresis for Pembrolizumab-Induced Hepatitis in a Patient with Squamous Cell Carcinoma and Prior Orthotopic Liver Transplantation

Figure 1

(a) A representative field from the H&E stained liver biopsy shows duct dropout, a lack of prominent mixed inflammatory infiltrate, and a portal tract with endotheliitis. (b) A representative field from the CK7 stained liver biopsy highlights bile ductular reaction. Not shown: a trichrome stain showed stage I fibrosis.

(a)

(b)