Granuloma annulare
Editor: unassigned
Granuloma annulare
Author: Stephen Lyle, M.D., Ph.D.
Conference: DermatopathologyConsultations.com Teaching Collection
Article Contributors:
Sean Klepper M.D.
Stephen Lyle, M.D., ...
Clinical Features:
- Peak incidence in children and young adults; female predominance
- Annular papules, primarily on the dorsal surfaces of the extremities
Histologic Features:
- Fully developed lesions show dermal palisading granulomas surrounding degenerated collagen ("necrobiosis") and mucin.
- Early lesions ("interstitial granuloma annulare") lack well-developed granulomas and instead show groups of macrophages dissecting between dermal collagen fibers.
External Links:
Cases associated with this book:
Author: Stephen Lyle, M.D., Ph.D.
 |  |  |  |  |
Conference: DermatopathologyConsultations.com Teaching Collection