Benign lesions - seborrheic keratosis

From dermoscopedia

0.00
(0 votes)

 Editor: Richard Usatine

Author(s): Richard Usatine
Annotations
Description This page has not yet been summarized.
Author(s) Richard Usatine
Responsible author Richard Usatine→ send e-mail
Status editing
Status update May 11, 2021
Status by Ralph P. Braun


Seborrheic keratoses are the most common benign epithelial lesion in adults. Their dermoscopic features have been well described in the chapter above. The following schematic shows the most typical features.

Schematic of SK[edit]


Seb k schematic.jpg


Seborrheic keratoses are found with shades of colors that span light brown to dark brown. They can also have multiple shades of brown and areas of white within a single benign lesion. The darkest SKs can mimic melanoma clinically which makes the understanding of the dermoscopic features so important. [1][2][3][4][5][6]

There is no data on how SKs in darker skin compare to SKs in lighter skin, but many have observed that dark SKs are common in dark skin.

Examples of darker SKs in persons with skin of color[edit]






Links to additional chapters on Skin of Color[edit]

References[edit]

  1. Papageorgiou et al.: The limitations of dermoscopy: false-positive and false-negative tumours. J Eur Acad Dermatol Venereol 2018;32:879-888. PMID: 29314288. DOI.
  2. Sahin et al.: A comparison of dermoscopic features among lentigo senilis/initial seborrheic keratosis, seborrheic keratosis, lentigo maligna and lentigo maligna melanoma on the face. J Dermatol 2004;31:884-9. PMID: 15729860. DOI.
  3. Mansur & Yildiz: A diagnostic challenge: inflamed and pigmented seborrheic keratosis. Clinical, dermoscopic, and histopathological correlation. Dermatol Online J 2019;25:. PMID: 30982311.
  4. Salerni et al.: Seborrheic keratosis-like melanoma. J Am Acad Dermatol 2015;72:S53-5. PMID: 25500043. DOI.
  5. Braun et al.: Differential Diagnosis of Seborrheic Keratosis: Clinical and Dermoscopic Features. J Drugs Dermatol 2017;16:835-842. PMID: 28915278.
  6. Carrera et al.: Dermoscopic Clues for Diagnosing Melanomas That Resemble Seborrheic Keratosis. JAMA Dermatol 2017;153:544-551. PMID: 28355453. DOI.