Dissecting Cellulitis of Scalp (Perifolliculitis Capitis Abscedens Et Suffodiens)- Part of the follicular occlusion tetrad; typically occurring in young adult black men
- Presents with multiple, firm boggy nodules and plaques with purulent material
- Histology: dense perifollicular inflammation affecting lower half of dermis with resulting dense fibrosis
- Treatment: intralesional corticosteroid, oral antibiotic, surgery or oral isotretinoin (not always effective)
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