Acute generalized exanthematous pustulosis with lymphangitis triggered by a spider bite.

Acute generalized exanthematous pustulosis (AGEP) is a rare, severe cutaneous reaction pattern that, in the majority (>90%) of cases, is related to administration of medication. It can be seen in both genders and in all ages. The cutaneous manifestations of AGEP are usually seen 1-14 days after drug administration. A 39-year-old woman presented to our outpatient clinic with the complaint of generalized erythema, burning, and rash. She explained that 2 days before presentation a spider bite had occurred on her left forearm, after which she had experienced pain and erythema spreading gradually to the left upper extremity. On her dermatologic examination, she had an indurated necrotic plaque on the left forearm, which had an upward-spreading linear erythema. Additionally, she had diffuse erythema on her body and small pustules over erythematous skin, especially located on the left popliteal fossa and gluteal region. Based on the clinical and histopathologic findings, she was diagnosed as having AGEP. Because there was no drug use in her history, we attributed her AGEP lesions to the spider bite. This case is interesting, because the patient also had lymphangitis. Herein, we present the fifth case reported in the literature of AGEP caused by a spider bite.