References1 Hynes NE, Lane HA. ERBB receptors and cancer: the complexity of targeted inhibitors. Nat Rev Cancer 2005; 5:341-54. 2 Segaert S, van Cutsem E. Clinical signs, pathophysiology and management of skin toxicity during therapy with epidermal growth factor receptor inhibitors. Ann Oncol 2005; 16:1425-33. 3 Perez-Soler R, Saltz L. Cutaneous adverse effects with HER1/EGFRtargeted agents: is there a silver lining? J Clin Oncol 2005; 23:5235-46. 4 Albanell J, Rojo F, Averbuch S et al. Pharmacodynamic studies of the epidermal growth factor receptor inhibitor ZD1839 in skin from cancer patients: histopathologic and molecular consequences of receptor inhibition. J Clin Oncol 2002; 20:110-24. 5 van Doorn R, Kirtschig G, Scheffer E et al. Follicular and epidermal alterations in patients treated with ZD1839 (Iressa), an inhibitor of the epidermal growth factor receptor. Br J Dermatol 2002; 147:598-601. 6 Busam KJ, Capodieci P, Motzer R et al. Cutaneous side-effects in cancer patients treated with the antiepidermal growth factor receptor antibody C225. Br J Dermatol 2001; 144:1169-76. 7 Suh KY, Kindler HL, Medenica M, Lacouture ME. Doxycycline for the treatment of paronychia induced by the epidermal growth factor receptor cetuximab. Br J Dermatol 2006; 154:191-2. 8 Lacouture ME, Basti S, Patel J, Benson A III. The SERIES clinic: an interdisciplinary approach to the management of toxicities to EGFR inhibitors. J Support Oncol 2006; 4:236-39. 9 Murillas R, Larcher F, Conti CJ et al. Expression of a dominant negative mutant of epidermal growth factor receptor in the epidermis of transgenic mice elicits striking alterations in hair follicle development and skin structure. EMBO J 1995; 14:5216-23. 10 Roujeau JC. Clinical heterogeneity of drug hypersensitivity. Toxicology 2005; 209:123-9.Fig 2.Laser scanning confocal microscopic study on the patient's skin showed the presence of in vivo-bound linear IgG deposits along the basement membrane zone: (a) colocalized with b4 integrin (yellow staining due to overlapping of green fluorescence of IgG and red fluorescence of b4 integrin) and (b) localized above laminin 5 (red staining of laminin 5 below the green fluorescence of IgG). Scale bar ¼ 10 lm.