Dermatologic Manifestations of Sarcoidosis

Updated: Feb 14, 2025
  • Author: Joseph F Merola, MD, MMSc; Chief Editor: Dirk M Elston, MD  more...
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Overview

Background

Dermatologic manifestations are seen in 25% of patients with sarcoidosis. They usually accompany systemic involvement, but in some cases they may be the only manifestations of the disease. Sarcoidosis is characterized by noncaseating epithelioid granulomas that may affect any organ system. [1]

Although Jonathan Hutchinson described the first case in 1869, the etiology of the disease is still unknown. The disease most commonly involves granuloma formation in the lungs, with 90-95% of patients having some pulmonary involvement. Other commonly involved organ systems include the lymph nodes (especially the intrathoracic nodes), the skin, the eyes, the liver, the heart, and the nervous, musculoskeletal, renal, and endocrine systems. [2]

 
 
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