Skin Tags are the smooth skin skin appendages that is mostly sessile/sitting, occasionally is pedenculated/elongated.
Skin Tags is a very common occurrence in the elderly.
Skin Tags is known medically as Seborrheic keratosis, also known as seborrheic verruca or senile wart.
This is a benign lesion originated in keratinocyte. They are mostly seen in the middle age onward but is also not infrequent to find in the young people even the non-exposed body part. Therefore, the name senile wart is a misnomer.
Skin Tags are mostly skin colored. At time it is more intense in coloration.
Many colors type such as from light tan to black. They are oval or round shape, flat or only slightly elevated, looks like a scab. The size range from a very small to 2.5 cm. They often come with other skin condition such as the basal cell carcinoma. Since only top layer of epidermis is involved, the lesion gives a pasted on appearance.
Skin Tags might be due to UV rays but not conclusive in the study.
Is not known exactly. Some suspect due to UV radiation but the lesion is also found extensively in covered body parts.
Most of the layman think that it is not caused by virus, but it is not.
Table showing the comparative differences of the actinic keratosis and the seborrheic keratosis.
|Actinic keratosis||Seborrheic keratosis|
|Other names||Senile keratosis, solar keratosis||Seborrheic verruca, senile wart|
Squamous cell carcinoma
Basal cell carcinoma
|Location||Only exposed skin part||All location|
|Causes||UV radiation||Unknown, non-viral
Likely somatic mutation in FGFR3 gene
|Texture||Sandpaper feel, dry rough||Smooth|
|Size||Mostly 2-6mm. But can reach few cm||Very small – 2.5cm|
|Appearance||Thick, scally, crusty||Pasted-on, scab-like appearance|
|Colour||Light tan to dark, pink , red||Light tan to dark|
|Symptom||Mostly asymptomatic. Tender, itchy, burning or itching and bleeding||Asymptomatic except for aesthetic reason|
|Salient features||Always rough surface||Always very smooth surface|
|Others||Untreated lesion has 20% chance of progressing to cancer||Never progress to cancer.|
Skin Tags: Incidence
Skin Tags occrs how frequently?
This is common in light skin, not so much in darker skinned. This is mostly seen in the middle aged and above. But also frequently in the younger population.
Skin Tags: Diagnosis
Skin Tags is diagnosed in what way?
Stuck or pasted-on appearance.
The gold standard is HPE when doubtful.
Skin Tags: Treatment
Skin Tags is treated in what manner?
No treatment is needed except for aesthetic reason.
It can be done by electrocautery, shave excision, or cryosurgery using liquid nitrogen.