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Last Updated: March 10, 2022
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Many lesions demonstrate a "dimple sign," where the central portion puckers as the lesion is compressed on the sides.
The “dimple sign” is a characteristic finding where lateral inward digital pressure of the skin produces a central dimpling over the lesion.
If you pinch a dermatofibroma, it creates a dimple because it is attached to the underlying subcutaneous tissue.1 On the other hand, ...
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 ...
References. Fitzpatrick TB, Gilchrest BA: Dimple sign to differentiate benign from malignant pigmented cutaneous lesions. N Engl J Med 1977;296: ...
Lateral pressure on a dermatofibroma leads to dimpling of its surface, known as the dimple sign. The cause of dermatofibroma has not been clearly ...
If a person pinches a dermatofibroma, it will not push toward the surface of the skin. Instead, it will dimple inward on itself. This characteristic can help ...
Dermatofibromas are an idiopathic benign proliferation of fibroblasts. ... The same dermatofibroma exhibits the dimple sign (B), ...
Characteristically, upon lateral compression of the skin surrounding dermatofibromas, the tumors tend to pucker inward producing a dimple-like ...
Although this “dimple sign” is not exclusive to dermatofibromas, it is still a very useful clinical sign. In the past, many experts attributed ...
... with dermatofibroma is usually shows a non-tender, hyperpigmented nodule with 0.3 to 1 cm in diameter which dimple sign may be positive.
Dermatofibromas may present as papules or nodules that are elevated or slightly depressed. ... Dermatofibroma, dimple sign. Figure 2.
DF can be diagnosed clinically with the Fitzpatrick sign, also called the dimple sign, in which lateral pressure against the tumor produces ...
The characteristic tethering of the overlying epidermis to the underlying lesion with lateral compression (pinching), called the dimple sign, ...