“…Radiation recall events are usually cutaneous or mucosal reactions or pneumonitis in the treatment field of prior radiotherapy that are precipitated by drug treatment; these events have been reported with many cytotoxic drugs, such as doxorubicin, etoposide, paclitaxel, and tamoxifen [16]. The cutaneous reports were primarily skin erythema and pruritus [15][16][17][18], while the noncutaneous reactions included hepatic necrosis [19], optic neuritis, brainstem radio necrosis, lymphangitis [18], and abdominal wall tenderness [18,20]. In general, radiation recall events have been rarely reported with gemcitabine [16,18].…”