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Related to dimple sign: ichthyosis, dermatofibroma
in dermatofibroma, dimpling elicited when the lesion is squeezed.
dimple signA clinical finding evoked by pinching a subcutaneous lesion, which results in a central dell/dimple, seen in well-circumscribed, often benign superficial dermal tumors–eg, dermatofibromas, inclusion cysts, lipomas, neurofibromas. Cf 'Tent' sign.
A sign to differentiate dermatofibroma, a benign lesion, from nodular melanoma, which it may mimic. On application of lateral pressure with the thumb and index finger, the dermatofibroma becomes dimpled or indented, whereas melanomas, melanocytic nevi, and normal skin protrude above the initial plane.
See also: sign