What causes eruptive vellus hair cysts?
Eruptive vellus hair cysts are thought to be the result of occlusion (blockage) at the level of the infundibulum (the part of the hair follicle just below the epidermis), subsequent cystic dilatation (enlargement) of the hair follicle and secondary atrophy (withering) of the hair bulb.
How do you treat Vellus cyst?
Treatment Options Treatment of eruptive vellus hair cysts is often unsatisfactory. Fortunately, up to 25% of cases spontaneously resolve. Surgical treatment by excision, incision and drainage, or by destruction by dermabrasion and ablative lasers is effective but may result in unacceptable scarring.
What can cause an increase in vellus hair?
Sometimes vellus hair growth is abnormal and can be a sign of disease. 3 For example, increased vellus hair growth can be attributed to an abundance of adrenal hormones in the bloodstream, a condition known as Cushing’s syndrome. Anorexia nervosa may also increase the production of vellus hair.
What does a vellus hair cyst look like?
Eruptive vellus hair cysts were first described in 1977. They usually appear as yellow to reddish-brown papules on the chest. Usual onset is between ages 17 and 24 years, but they may be congenital. Some believe that they may be inherited as an autosomal dominant disorder.
What is eruptive vellus cyst?
Eruptive vellus hair cyst (EVHC) is a rare follicular developmental abnormality of the vellus hair follicles. They are usually seen in children, adolescents, or young adults and manifest as reddish-brown smooth papules most commonly involving the chest, limbs, and abdomen.
What happens if you pluck vellus hair?
Digging into the skin to pull the hair out can cause an infection. It is also important not to pluck the hair out, as this increases the chance that the hair will be ingrown again as it grows back.
How do you remove vellus hair?
Dermaplaning is an effective method of exfoliation. Using a scalpel blade, dead skin cells are removed from the epidermis (top layer of the skin). Along with exfoliating, dermaplaning also helps remove the unwanted vellus hairs from the face.
Where does vellus hair emanate from?
Vellus hair has a similar structure to terminal hair. Both types of hair grow from a hair follicle. Each hair follicle contains a gland that secretes sebum, an oil that lubricates the skin and hair. However, unlike terminal hair, vellus hair does not typically have a medulla.
How much vellus is normal?
Answer: How much telogen vellus is normal? Provided telogen vellus proportions are less than 10 % it would be considered fairly normal for most people. Telogen vellus hairs are part of the normal scalp.
What is vellus hair also known as?
These are vellus hairs, also referred to as peach fuzz or baby hair. This hair is translucent and unmistakably thinner than other hair on your body. You’ll also find these tiny hairs on your nose and eyelids.
What is vellus and terminal hair?
Vellus hair is lightly pigmented, fine, short hair, often referred to as “peach fuzz” that is found on the face, arms, stomach, and legs. Terminal hair is coarse, thick hair that is found on the scalp, underarms, and pubic area. In men, terminal hair is also found on the face.
Do vellus hairs fall out?
Growth patterns Vellus hair tends to have a shorter anagen phase than terminal hair. Catagen: A period of transition, during which the hair follicle contracts and limits blood supply. The hair can easily fall out during this stage.
What is the pathophysiology of vellus hair cysts?
Pathophysiology. Eruptive vellus hair cysts probably develop due to occlusion of the infundibulum of vellus hairs with resultant cystic dilatation and retention of keratinous debris and vellus hairs. The primary cause of the obstruction is unknown. They may also represent follicular hamartomas.
What is the prevalence of ejective vellus hair cysts (EVHC)?
Eruptive vellus hair cysts (EVHC) are rather uncommon lesions, of which 222 cases have been published in the literature. Their etiopathogenesis is poorly known.
What is the difference between Terminal and vellus hair?
Vellus hairs are fine, blond hairs normally growing on the face, trunk and limbs (in contrast to terminal hairs, which are longer, pigmented, and mainly arising on the scalp, beard, underarms and pubic area). What are eruptive vellus hair cysts?
What are accessory tragus and accessory vellus?
Accessory tragus: also has increased vellus hairs, but usually has other types of tissue (i.e. mature adipose tissue or cartilage); location around the ear is also helpful