Nonhealing Leg Ulcer as the Presentation of Sarcoidosis: A Case Report.

Chronic leg ulcers (CLUs) are common, with increasing prevalence in the elderly population. Circulatory dysfunctions are responsible for 90% to 95% of all causes, while 5% to 10% of CLUs are associated with underlying chronic systemic disorders. Sarcoidosis is a complex multisystemic disease characterized by noncaseating granulomas affecting mainly the pulmonary system, with cutaneous manifestation in 25% to 30% of cases. However, ulcerative sarcoidosis (US) is a rare form of cutaneous sarcoidosis. Pyoderma gangrenosum (PG) is an uncommon, chronic inflammatory noninfectious skin disease affecting different body parts. The ulcerative form of PG is rarely reported in association with sarcoidosis. We aim to report a 44-year-old female patient with a history of hypertension and varicose veins, presenting with a CLU for more than 18 months. Ulcer tissue biopsy showed noncaseating granuloma with abscess formation suggestive of sarcoidosis; however, PG could not be ruled out. Mediastinal lymph node biopsy was consistent with sarcoidosis. The leg ulcer had complete healing within 4 months by local wound management, negative pressure wound therapy, and split-thickness skin grafting without immunosuppressive treatment to achieve wound healing.