What Is New in Nail Psoriasis?

Background: Nail involvement is very frequent in psoriasis and may significantly affect patients’ quality of life due to clinical and functional impairment. In addition, nail psoriasis constitutes a negative prognostic factor for the development of psoriatic arthritis (PsA), even in the absence of cutaneous disease. Summary: Herein we provide an updated review on the diagnostic evaluation of nail psoriasis using clinical assessment and implementation of imaging techniques including dermoscopy, capillaroscopy, ultrasonography, and optical coherence tomography. In addition, we summarize consensus guidelines for the management of nail psoriasis and provide efficacy data on the use of intralesional, topical, and the most recently approved targeted systemic therapies. Key Messages: Physicians should be aware of the importance of prompt diagnosis and management of nail psoriasis, to improve patient outcomes and decrease the risk of PsA development.