title: Psoriatic arthritis and psoriasis: differential diagnosis.
abstract: Psoriasis frequency ranges from 1 to 3 % in white population, and arthritis occurs in 10-40 % of psoriasis patients, representing a relevant health issue. Psoriatic arthritis (PsA) is an inflammatory arthropathy, associated with psoriasis, in which ocular-, intestinal-, metabolic-, and cardiovascular-related manifestations can variably coexist. In order to favor early PsA and psoriasis diagnosis, it is crucial to rule out other conditions that can resemble the disease and delay appropriate therapeutic approach. Therefore, the aim of this review is to focus on PsA and psoriasis differential diagnosis.
authors.affiliation: Dermatology Unit, Department of Clinical Medicine and Surgery, University Federico II, via S. Pansini 5, 80131, Naples, Italy.
authors.forename: Maddalena
authors.initials: M
authors.lastname: Napolitano
authors.affiliation: Rheumatology Unit, Department of Clinical Medicine and Surgery, University Federico II, via S. Pansini 5, 80131, Naples, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Caso
authors.affiliation: Rheumatology Unit, Department of Clinical Medicine and Surgery, University Federico II, via S. Pansini 5, 80131, Naples, Italy.
authors.forename: Raffaele
authors.initials: R
authors.lastname: Scarpa
authors.affiliation: Dermatology Unit, Department of Clinical Medicine and Surgery, University Federico II, via S. Pansini 5, 80131, Naples, Italy.
authors.forename: Matteo
authors.initials: M
authors.lastname: Megna
authors.affiliation: Dermatology Unit, Department of Clinical Medicine and Surgery, University Federico II, via S. Pansini 5, 80131, Naples, Italy.
authors.forename: Angela
authors.initials: A
authors.lastname: Patrì
authors.affiliation: Dermatology Unit, Department of Clinical Medicine and Surgery, University Federico II, via S. Pansini 5, 80131, Naples, Italy.
authors.forename: Nicola
authors.initials: N
authors.lastname: Balato
authors.affiliation: Rheumatology Unit, Department of Clinical Medicine and Surgery, University Federico II, via S. Pansini 5, 80131, Naples, Italy. lv.costa@libero.it.
authors.forename: Luisa
authors.initials: L
authors.lastname: Costa
mesh_terms: D015535:Arthritis, Psoriatic / Q000175:diagnosis* / Q000188:drug therapy; D003937:Diagnosis, Differential; D042241:Early Diagnosis; D006801:Humans; D011565:Psoriasis / Q000145:classification / Q000150:complications* / Q000175:diagnosis*
keywords: Differential diagnosis; Psoriasis; Psoriatic arthritis