title: The pustule in palmoplantar psoriasis: transformed vesicle or mature microabscess? A three-dimensional study.
abstract: Psoriasis on the palms and soles is characterized by pustules, vesicles and hyperkeratotic plaques. Several studies have postulated that the pustules and vesicles are round or egg-shaped. This three-dimensional study reveals that neither pustules nor vesicles have a regular spherical morphology. The vesicles are located in the upper and middle layers of the epidermis and may exhibit dumb-bell- or banana-shaped lumina. The pustules consist of different compartments combining characteristics of a dyshidrotic vesicle with those of a microabscess of Munro.
authors.affiliation: Dermatologische Klinik, Ruhr-Universität, Bochum, BRD.
authors.forename: P H
authors.initials: PH
authors.lastname: Krieg
authors.forename: M
authors.initials: M
authors.lastname: Bacharach-Buhles
authors.forename: S
authors.initials: S
authors.lastname: el-Gammal
authors.forename: P
authors.initials: P
authors.lastname: Altmeyer
mesh_terms: D000038:Abscess / Q000473:pathology*; D000328:Adult; D001706:Biopsy / Q000379:methods; D003198:Computer Simulation; D005260:Female; D005533:Foot Dermatoses / Q000473:pathology*; D006098:Granulocytes / Q000473:pathology; D006229:Hand Dermatoses / Q000473:pathology*; D006801:Humans; D008875:Middle Aged; D011565:Psoriasis / Q000473:pathology*; D012867:Skin / Q000473:pathology