Skin Diseases Associated with HIV Infection.- Applications of Molecular Virology to Modern Dermatopathology.- Clinicopathological Differential Diagnosis of Drug-Induced Toxic Epidermal Necrolysis (Lyell’s Syndrome) and Acute Graft-Versus-Host Reaction.- Histopathology of Spitz Naevi and “Spitzoid” Melanomas.- New Concepts in Cutaneous B-Cell Lymphomas.- Clinical and Prognostic Significance of Molecular Studies in Cutaneous T-Cell Lymphoma.- Skin Lesions of Fibrocytic and Fibrohistiocytic Differentiation: A New Concept and Classification.