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Positive PPD skin test

URL of this page: //medlineplus.gov/ency/imagepages/3037.htm

Positive PPD skin test

Overview

The positive immunologic response to PPD antigen is seen here. The size of the papule is over 2 cm in diameter.

Review Date 12/31/2023

Updated by: Jatin M. Vyas, MD, PhD, Associate Professor in Medicine, Harvard Medical School; Associate in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.