Seborrhoeic Keratosis

Seborrhoeic Keratosis (SK) also known as senile wart, wisdom wart, barnacle is a benign (harmless) warty spot that usually occurs due to ageing. It's very common in adults age over 60 males and females and start the appearance around 30s and 40s. People who has SK normally have more than one lesion on their skin (Michalak-Stoma et al., 2021).

SK has he lesion can appears macule (flat) or lesion usually has raised as pictured below. Other characteristics of seborrheic keratosis are:

Milia-like cysts
Comedo-like opening
Finger-print like structure
Moth-eaten border
Sharp demarcation border
Hairpin vessels with whitish halo
Ridges and fissures (sulci)
Multiple white clods

(Errichetti & Stinco, 2016)

It can appear anywhere in the body except mucous membrane, palms and soles. May become irritated or inflamed. Large variation in clinical appearance and can stimulate melanocytic neoplasms.

Figure 1.

Image of seborrheic keratosis retrieved from https://www.dermnetnz.org/seborrheic-keratosis

TREATMENTS

Some treatment to remove SK are cryotherapy, curettage, ablative laser surgery, shave biopsy, electrolysis and focal TCA peel. The last two treatment options highlighted are available at Skinderm Aesthetics.

References

DermNet (n.d.) Retrieved from https://www.dermnet.org/

Errichetti, E., & Stinco, G. (2016). Dermoscopy in General Dermatology: A Practical Overview. Dermatology and Therapy, 6, 471-507. doi:https://doi.org/10.1007/s13555-016-0141-6

Michalak-Stoma, A., Malkinska, K., & Krasowska, D. (2021). Usefulness of Dermoscopy to Provide Accurate Assessment of Skin Cancers. Clinical, cosmetic and investigational dermatology, 14, 733-746. doi:https://doi.org/10.2147/CCID.S305924