[Translated article] Validation of the Spanish Version of the PURE-4 Questionnaire for the Early Detection of Psoriatic Arthritis in Psoriatic Patients.

Background And Objective: Psoriasis often precedes the onset of psoriatic arthritis (PsA), so dermatologists often face the challenge of early identifying signs of PsA in patients with psoriasis. Our aim was to validate the Spanish version of the PURE-4 questionnaire as a screening tool for PsA, evaluate its performance in terms of sensitivity, specificity, feasibility, reliability, and build validity.

Methods: This was a cross-sectional, observational, multicenter trial of adult patients with psoriasis.

Ultrasound as a diagnostic and management tool in hidradenitis suppurativa patients: a multicentre study.

Background: It has been reported that clinical evaluation consistently underestimates the severity of hidradenitis suppurativa (HS).

Objective: To determine the usefulness of ultrasound as a diagnostic tool in HS compared with clinical examination and to assess the subsequent modification of disease management.

Methods: Cross-sectional multicentre study.

Extranodal natural killer/T-cell lymphoma, nasal type: a Spanish multicentric retrospective survey.

Background: Extranodal natural killer/T-cell lymphoma, nasal type (ENKTL) is an aggressive lymphoma with a very low incidence in western populations.

Objective: To review the clinicopathological features and outcome of a multicentre series of ENKTL in Spain.

Materials & Methods: A multicentre retrospective study was performed based on cases of ENKTL, collected from 1995 to 2004, from 12 dermatology departments included in the Spanish Lymphoma Study Group.

Evidence-based guidelines of the spanish psoriasis group on the use of biologic therapy in patients with psoriasis in difficult-to-treat sites (nails, scalp, palms, and soles).

Psoriatic lesions affecting the scalp, nails, palms, and the soles of the feet are described as difficult-to-treat psoriasis and require specific management. Involvement of these sites often has a significant physical and emotional impact on the patient and the lesions are difficult to control with topical treatments owing to inadequate penetration of active ingredients and the poor cosmetic characteristics of the vehicles used. Consequently, when difficult-to-treat sites are involved, psoriasis can be considered severe even though the lesions are not extensive.