NODULAR AND DIFFUSE DERMATITIS
NODULAR - Neutrophils predominate
| Nonsuppurative | No fibrin in walls of venules | Sweet's syndrome / Inflammatory bowel disese Rheumatoid neutrophic dermatitis |
| Fibrin in walls of venules | Leukocytoclastic vasculitits,
acute( e.g.,Henoch-Schonlein purpura) Churg-Strauss allergic granulomatosis Leukocytoclastic vasculitis, chronic(e.g.,Granuloma faciale) Erythema elevatum diutinum, early |
|
| Suppurative | Solitary collection | Follicular cyst, ruptured |
| Collections | Acune conglobata Acenkeloidalis Dissecting cellulitis Hidradenitis suppurative |