Granuloma annulare
Fully developed conventional
| Histiocytes arranged in palisades or interspersed among collagen bundles, or both, in well-defined foci in the reticular dermis; zones of normal dermis separate foci of granulomatous inflammation |
| Copious mucin, sometimes in company with variable amounts of fibrin and of degenerated bundles of collagen, within centers of palisaded granulomas and in association with histiocytes scattered instestitially |
| Neutorophils and nuclear "dust" of neutrophils often within centers of palisades |