[Skin symptoms of psoriasis associated with spondylarthropathies]

The term spondylarthropathy summarizes a heterogenous group of diseases with spinal involvement as the common denominator. In this paper, we will primarily focus on cutaneous manifestations of psoriasis, as this dermatosis is associated with psoriatic artrhritis, one of the major diseases classified as spondylarthropathy. We will describe the clinical manifestations of psoriasis as well as the underlying pathophysiology, the latter allowing to understand the differences in efficacy of numerous Disease Modifying Anti-Rheumatic Drugs (DMARDs) on joint versus skin symptoms. Additionally, we address the exacerbation of pre-existing psoriasis under DMARD therapy.