Special Collections

Diagnostic Update

Hidradenitis suppurativa (HS) is a chronic, recurrent inflammatory skin disease characterized by tender subcutaneous nodules, draining sinuses, abscesses, ulcers, and fistulas. HS is often misdiagnosed, and patients with HS often face years-long delays between manifestation of first symptoms and diagnosis. This article discusses recent advances in diagnostic approaches and severity scores that have improved the diagnosis and disease staging of HS.

Editor’s Note: This article was originally posted on Rheumatology Advisor on 07/01/2021. Approximately 1.5 million Americans have psoriatic arthritis (PsA), the most common comorbidity of psoriasis. Of the 8 million Americans with psoriasis, 30% to 33% are reported to also have PsA.1-3 The reported global prevalence of PsA varies widely, depending on the population studied, and…