title: Balanitis circumscripta plasmacellularis: case report with ultrastructural study.
abstract: A typical case of balanitis circumscripta plasmacellularis is described in a 74-year-old man. Electron microscopy revealed a dense infiltrate composed mainly of plasma cells and macrophages; the former showed considerable rough endoplasmic reticulum and phagolysosomes, while the latter contained variable amounts of sideromes. A few mast cells, eosinophils and extravasated erythrocytes were also present. Connective tissue was scarce; no elastic fibres and viral particles were seen.
mesh_terms: D000368:Aged; D001446:Balanitis / Q000473:pathology*; D006801:Humans; D008247:Lysosomes / Q000648:ultrastructure; D008264:Macrophages / Q000648:ultrastructure; D008297:Male; D010587:Phagocytosis; D010950:Plasma Cells / Q000648:ultrastructure