Dimple sign

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Dimple sign

The dimple sign or Fitzpatrick's sign is a dermatological sign in which lateral pressure on the skin produces a depression.[1]

The sign is seen in orthopaedics.[2][3]

It is typically associated with dermatofibroma in dermatology.[4][5]


  1. James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "28. Dermal and subcutaneous tumors". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. pp. 617–618. ISBN 978-0-323-54753-6. Archived from the original on 2022-03-01. Retrieved 2022-03-01.
  2. Hantes, Michael E.; Banios, Konstantinos (2019). "2. Management in the emergency room". In Margheritini, Fabrizio; Espregueira-Mendes, João; Gobbi, Alberto (eds.). Complex Knee Ligament Injuries: From Diagnosis to Management. Springer. p. 23. ISBN 978-3-662-58244-2. Archived from the original on 2022-03-01. Retrieved 2022-03-01.
  3. Aradi AJ, Wong J, Walsh M (March 1988). "The dimple sign of a ruptured lateral ligament of the ankle: brief report". J Bone Joint Surg Br. 70 (2): 327–8. doi:10.1302/0301-620X.70B2.3126191. PMID 3126191. Archived from the original on 2019-12-10. Retrieved 2020-10-10.
  4. Zaballos P, Llambrich A, Ara M, Olazarán Z, Malvehy J, Puig S (February 2006). "Dermoscopic findings of haemosiderotic and aneurysmal dermatofibroma: report of six patients". Br. J. Dermatol. 154 (2): 244–50. doi:10.1111/j.1365-2133.2005.06844.x. PMID 16433792. S2CID 22308659.
  5. Naversen DN, Trask DM, Watson FH, Burket JM (February 1993). "Painful tumors of the skin: "LEND AN EGG"". J. Am. Acad. Dermatol. 28 (2 Pt 2): 298–300. doi:10.1016/0190-9622(93)70039-V. PMID 8436643.