palisaded granulomatous rheumatoid dermatitis
Histologic Features
- Nodular collections of histiocytes, some with a foamy appearance
- Patchy mucin deposition and collagen degeneration
- Single large atypical histiocytes between collagen bundles
- A large numbers of neutrophils and lymphocytes around vessels and adnexae
- Scattered eosinophils and plasma cells
- Foci of nuclear dusts
- Destruction of adnexal structures
Updated Wednesday, July 31, 2013 8:30:48 PM