Cetuximab and panitumumab in a patient with colon cancer and concomitant chronic skin disease: A potential beneficial effect on psoriasis vulgaris

Figure 1 Improvement in psoriasis vulgaris after anti-epidermal growth factor receptor antibody monotherapy. A: Clearly demarcated plaques with silver scales are evident before initiation of cetuximab; B: After initiation of cetuximab, psoriasis skin lesions remarkably improved, and only erythema was observed.

Figure 2 Effect of anti-epidermal growth factor receptor antibody on liver metastatic lesions of colon cancer. A: Enhanced abdominal computed tomography showed metastatic lesions throughout the liver, including in the right posterior segment; B: The best response was partial response, with eventual regrowth.