Figure 7.

Immunohistochemical localization of lipocalin-type prostaglandin D synthase (L-PGDS) in skin lesions of eosinophilic pustular folliculitis (EPF). (a) Hair follicle epithelium with eosinophil infiltration was positive for L-PGDS. (b) Isotype control of (a). (c) Palmar lesions of EPF. Epidermal keratinocytes around pustules and eccrine ostia in the stratum corneum showed positive results for L-PGDS. (d) L-PGDS in eccrine ducts and glands. Basal (clear) cells in secretory portion and ductal cells were positive for L-PGDS.