Pastia's lines

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Pastia's lines
CausesScarlet fever

Pastia's sign, also called Pastia lines, is a medical sign in which pink or red lines formed of confluent petechiae are found in skin creases, particularly the inner side of the elbow of an individual with scarlet fever.[1]

The sign is named after the Romanian physician Constantin Chessec Pastia (1883–1926).[2] It is sometimes referred to as Thomson’s sign, named for the British physician Frederick Holland Thomson.[2]


  1. Michaels, Marian `G.; Williams, John V. (2023). "13. Infectious diseases". In Zitelli, Basil J.; McIntire, Sara C.; Nowalk, Andrew J.; Garrison, Jessica (eds.). Zitelli and Davis' Atlas of Pediatric Physical Diagnosis (8th ed.). Philadelphia: Elsevier. pp. 468–469. ISBN 978-0-323-77788-9. Archived from the original on 2023-04-08. Retrieved 2023-07-25.
  2. 2.0 2.1 Freiman, Anatoli; Kalia, Sunil; O'Brien, Elizabeth A. (July 2006). "Dermatologic Signs". Journal of Cutaneous Medicine and Surgery. 10 (4): 175–182. doi:10.2310/7750.2006.00042.