Dermatofibroma

From dermoscopedia academy

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 Editor: Ralph P. Braun

 Author(s): Lauren Fried
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Description Below are dermoscopic features commonly associated with the diagnosis “Dermatofibroma”. The example images have been approved by a panel of experts as representative of each given feature.


For a more in-depth discussion of associated features, please see the Dermoscopedia page for “Dermatofibroma”.

Author(s) Lauren Fried
Responsible author Ralph Braun→ send e-mail
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Status update This page has not yet been assessed.
Status by Ralph P. Braun


Below are dermoscopic features commonly associated with the diagnosis “Dermatofibroma”.[1] The example images have been approved by a panel of experts as representative of each given feature.

For a more in-depth discussion of associated features, please see the Dermoscopedia page for “Dermatofibroma”.

Central scar-like white patch with delicate surrounding network-like structures[edit]

Central scar-like white patch: irregularly outlined and sharply-demarcated white area in lesion center. On nonpolarize dermoscopy, appears as a white scar-like area; on polarized dermoscopy, appears as a bright white areas +/- shiny white lines.
Delicate pigment network: light-to-medium brown pigment network with a fine/delicate quality; gradually fades into surrounding skin; usually located at periphery of lesion.[1]

Ring-like globules[edit]

The pigment network located toward the center of the lesion often ceases to look like a reticulated mesh but rather begins to resemble “ring-like” globular structures.[2]

Central shiny white lines (crystalline structures)[edit]

Irregularly outlined and sharply-demarcated white area in lesion center. On nonpolarized dermoscopy, this appears as a white scar-like area; on polarized dermoscopy, it appears as a bright white areas with or without shiny white lines.[3]

  1. Fried LJ, Tan A, Berry EG, et al. Dermoscopy Proficiency Expectations for US Dermatology Resident Physicians: Results of a Modified Delphi Survey of Pigmented Lesion Experts. JAMA Dermatol. Published online January 06, 2021. doi:10.1001/jamadermatol.2020.5213