Dimple sign

The dimple sign or Fitzpatrick's sign is a dermatological sign in which lateral pressure on the skin produces a depression.[1][2] It is associated with dermatofibroma.[3]


  1. 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. PMID 3126191.
  2. 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.
  3. 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.

Further reading

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