SUPERFICIAL AND DEEP PERIVASCULAR DERMATITIS
NO EPIDERMAL INVOLVEMENT - PERIVASCULAR
| Lymphocytes predominate | No other change | Polymorphous light eruption,early Erythema figuratum Erythema chronicum migrans Pernio |
| Marked edema in papillary dermis | Polymorphous light eruption | |
| Abundant mucin in reticular dermis | DLE, tumid | |
| Nuclei of lymphocytes crenulated | Chronic lymphocytic leukemia B cell lymphoma |
|
| Eosinophils prominent | Wedge-shaped infiltrate | Arthropod assault and simulators of it |
| Plasma cell prominent | Erythema chronicum migrans Scleroderma |
|
| Histiocytes and lymphocytes prominent | Leprosy indetrminant | |