What is eruptive Vellus cyst?
Abstract. 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 does a vellus hair cyst look like?
Vellus hair cysts usually present as small red or brown bumps over the sternum. They have also been reported to occur on the limbs and vulva. There may be few to numerous cysts, sometimes numbering in the hundreds. Individual lesions are usually small smooth dome-shaped papules, 2–3 mm in size.
How do you treat eruptive Vellus cysts?
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?
Vellus Hair Conditions 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 Vellus hair mean?
“Baby hairs” are the thin, wispy hairs that sometimes grow around your hairline. Also called “peach fuzz” or “vellus,” these hairs have a much different texture than the hair around the rest of your head. This difference in texture often means that these hairs are hard to style, and they don’t lay flat.
Is Vellus a pigment?
Vellus hair is fine, soft, and lightly pigmented. By contrast, terminal hair is coarse, curly, and pigmented. Because small amounts of terminal hair are normal in women, quantitation is important.
What is Trichostasis spinulosa?
Trichostasis spinulosa (TS) is a condition where instead of one hair protruding from a hair follicle, a bundle or bush of hair come out of a single follicle. This results in elevated, dark spiny papules on the head, face (usually the nose), and trunk.
What is the texture of vellus hair?
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.
How long does Vellus last?
The vellus hairs will shed and be replaced with a terminal hair and there is no timescale for how long this takes. It could take 6 weeks, or 6 months even. But when the hairs begin to shed, this is a good sign that new thicker hairs will soon replace them.
How much Vellus is normal?
In 2009, Rakowska determined that the normal number of short vellus hairs in the frontal area of healthy individuals in 20-fold magnification is 2 vellus.
Can pilar cysts be cancerous?
Pilar cysts on the scalp are not cancerous and usually don’t have negative effects on your overall health. While most pilar cysts are painless, some cysts may be irritated if you bump or scratch them.