The Auspitz sign
may be visible to the naked eye
or require a close-up examination of the skin with a magnifying lens called a dermascope. It typically occurs where the skin has been scratched or abraded by clothing. The clustered blood spots may be large or small depending on the area of skin involved.
What is the Koebner phenomenon?
The Koebner phenomenon (KP), first described in 1876 by Heinrich Koebner, is
the appearance of new skin lesions on previously unaffected skin secondary to trauma
.[1] This phenomenon is also termed the isomorphic (from Greek, “equal shape”) response, given the fact that the new lesions that appear are clinically and …
What is Grattage test?
It is a celebrated sign of dermatology named after Heinrich Auspitz, described in psoriasis, where there is pinpoint bleeding on removal of scales from the lesions of psoriasis. The test by which Auspitz sign is elicited is called as Grattage test.
What disorder has silvery scales and is familial?
Psoriasis
is a chronic proliferative and inflammatory condition of the skin. It is characterized by erythematous plaques covered with silvery scales particularly over the extensor surfaces, scalp, and lumbosacral region.
How is koebner phenomenon treated?
The symptoms of the Koebner phenomenon are treated in the same way that psoriasis and PsA are treated. If you experience symptoms, you should consult a dermatologist who specializes in treating psoriasis. For skin lesions, they may recommend
topical medications, ultraviolet light therapy
, or oral medications.
Which presents as Umbilicated papules?
Molluscum contagiosum virus
causes characteristic skin lesions consisting of single or, more often, multiple, rounded, dome-shaped, pink, waxy papules that are 2-5 mm (rarely up to 1.5 cm in the case of a giant molluscum) in diameter. The papules, or bumps, are umbilicated and contain a caseous plug.
What is Bulkeley membrane?
When the scales are completely scraped off, the stratum mucosum (basement membrane) is exposed and is seen as a moist
red
surface (membrane of Bulkeley) through which dilated capillaries at the tip of elongated dermal papillae are torn, leading to multiple bleeding points [Figure – 1].
What is a Papulosquamous disorder?
Papulosquamous diseases are
a heterogeneous group of disorders whose etiology primarily is unknown
. The nosology of these disorders is based on a descriptive morphology of clinical lesions characterized by scaly papules and plaques.
What is the root cause of psoriasis?
Psoriasis is caused, at least in part, by
the immune system mistakenly attacking healthy skin cells
. If you’re sick or battling an infection, your immune system will go into overdrive to fight the infection. This might start another psoriasis flare-up. Strep throat is a common trigger.
Is Koebner phenomenon rare?
Prevalence is estimated at
2% to 4.6% in the United States
; the incidence peaks at age 20 to 30 years and again at 50 to 60 years. First documented in 1872, Koebner phenomenon (the isomorphic response) describes the appearance of trauma-induced psoriatic lesions on previously uninvolved skin.
How do I check my Koebner phenomenon?
The symptoms of the Koebner phenomenon are treated in the same way that psoriasis and PsA are treated. If you experience symptoms, you should consult a dermatologist who specializes in treating psoriasis. For skin lesions, they may recommend
topical medications, ultraviolet light therapy, or oral medications
.
Can shaving cause psoriasis?
Shaving and other hair removal treatments may cause even more skin irritation that will trigger a psoriasis flare. This reaction is called the
Koebner phenomenon
and occurs when a minor skin injury like a cut or sunburn results in a new psoriasis plaque on the site of the affected area.
What does Umbilicated papules mean?
Papules are by definition, small, usually less than a centimeter in size, which is about the width of your fingernail. Your papule may have a dome shape, or it may be flat on the top. It may even be umbilicated, meaning
it has a small impression in the middle that looks like a navel.
What cream is best for molluscum contagiosum?
Imiquimod
. Imiquimod is a cream that can be used to treat larger spots or large clusters of spots. Some studies have found that imiquimod is usually only effective when it is used by people with a weakened immune system. It works by stimulating your immune system into attacking the spots.
What does molluscum look like when healing?
The molluscum bumps themselves may
become red and swollen
, sometimes forming pus-filled pimples. This is usually a good sign that the immune system is fighting the virus and starting to clear the infection. When molluscum bumps go away, they may leave pink-purple or white spots that fade over time.
