Question: A 72-year-old woman presented with a 6month history of multiple erythematous plaques over her bilateral lower limbs. She had a history of hepatitis C for 10 years and was regularly followed up in the gastrointestinal outpatient department. Her a-fetoprotein level was within the normal range until 1 year ago, but it increased to 29.1 ng/mL (reference value, <15 ng/ml) 1 month after the onset of skin lesions. Magnetic resonance imaging revealed 1.9-cm nodular lesions in S3 of the hepatic lobule, which appeared hypointense on T1-weighted images and hyperintense on T2-weighted images with arterial enhancement, and then faded in the portal and equilibrium phase. The diagnosis of hepatocellular carcinoma was made based on image study.On physical examination, multiple itchy wellmarginated annular erythematous scaly plaques with purpuric change over her bilateral lower legs and feet were noted (Figure A). Skin scraping test showed a negative result for fungus infection. A skin biopsy was performed, and histopathology revealed parakeratosis, mild acanthosis with focally dyskeratotic cells, and epidermal pallor in the epidermis (Figure B, stain: hematoxylin and eosin, magnification Â40). Hypozincemia (54.3 mg/dL; normal range, 60-120 mg/dL) was also noted in the laboratory examination.What is your diagnosis? Look on page 39 for the answer and see the Gastroenterology website (www.gastrojournal.org) for more information on submitting your favorite image to Clinical Challenges and Images in GI.