Angioimmunoblastic lymphadenopathy often begins with constitutional symptoms, such as fever, malaise, and weight loss. Most patients have generalized lymphadenopathy, and about 40 per cent have skin lesions with maculopapular erythema, purpura, urticaria, or exfoliative erythroderma. Lymph-node biopsy specimens demonstrate the most characteristic histopathologic features: extensive effacement of lymph nodal architecture; a pleomorphic population of immunoblasts, plasma cells, lymphocytes, and eosinophils; interstitial deposits of eosinophilic material; and prominent vascular proliferation, with arborization of small vessels.