What is the role of the tuberculin skin test in the diagnosis of sarcoidosis?

Updated: Jul 30, 2018
  • Author: Joseph F Merola, MD, MMSc; Chief Editor: Dirk M Elston, MD  more...
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Answer

Answer

Regarding the tuberculin skin test, patients with sarcoidosis have impaired delayed-type immune reactions. Two thirds of patients with systemic sarcoidosis have cutaneous anergy to the tuberculin and other skin tests. It is not known if cutaneous anergy is frequent in patients with cutaneous lesions of sarcoidosis with little or no systemic involvement.


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