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→Pathology
===Endoscopy===
===Endoscopy===
===Pathology===
===Pathology===
Grossly:
**Papular dermatitis
**Secondary excoriations
**Alopecic nodule if chronic
*Microscopically:
**Hyperplastic superficial perivascular dermatitis
**Oedema, [[Mast Cells|mast cells]], [[Basophils|basophils]], [[Eosinophils|eosinophils]], [[Lymphocytes|lymphocytes]], histiocytes
**Fibropruritic nodules covered by hyperplastic epidermis
==Treatment==
==Treatment==
==Prognosis==
==Prognosis==