Spitz nevi

From dermoscopedia academy
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 Editor: User:N.N.

 Author(s): Lauren Fried
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Below are dermoscopic features commonly associated with the diagnosis “Spitz nevi”.[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 “Spitz nevi”.

Vascular pattern (pink homogenous with dotted vessels)

Starburst pattern (with tiered globules / streaks) (radial streaming)

The starburst pattern, indicating the radial growth phase of the tumor, consists of a central homogenous black-blue pigmentation surrounded by streaks, pseudopods, or finger-like projection regularly and symmetrically distributed at periphery.[2]

Negative network (reticular depigmentation)

Serpiginous interconnecting broadened hypopigmented lines that surround elongated and curvilinear globules (a whitish grid surrounding the vessels).[3]

White shiny lines (crystalline structures)

Shiny white lines that are often oriented orthogonally or in parallel to each other.[4]

  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
  2. https://dermoscopedia.org/Spitz_/_Reed_nevi#Pigmented_Spitz_nevus
  3. https://dermoscopedia.org/Spitz_/_Reed_nevi#Non_pigmented_Spitz_nevus
  4. https://dermoscopedia.org/Spitz_/_Reed_nevi#Non_pigmented_Spitz_nevus
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