How can you tell the difference between pityriasis alba and vitiligo?
Pityriasis alba can be distinguished from vitiligo by studying the nature of the border of the rashes. In vitiligo, the rash has a very distinct border that sharply demarcates the affected and unaffected skin areas.
How do you get vulvar lesions?
There are many possible reasons vulvar ulcers develop, including:
- STIs. The most common cause of genital ulcers in the United States is the herpes simplex virus (HSV), followed by syphilis.
- Fungal infections.
- Viral infections.
- Bacterial infections.
- Inflammatory diseases.
- Trauma.
- Other illnesses.
- Drug reactions.
How do you treat pityriasis alba?
No treatment is required for pityriasis alba. The patches usually go away with time. Your doctor may prescribe a moisturizing cream or topical steroid cream such as hydrocortisone to treat the condition. In some cases, your doctor may prescribe a nonsteroid cream, such as pimecrolimus.
What causes benign vulvar lesions?
Non-cancerous vulvar cysts are caused by a blockage of the ducts or glands in the vulva area. Bartholin cysts are the most common type of vulvar cyst. They usually appear as a painless lump next to the vaginal opening near the anus. If an abscess develops the lump will be painful.
Why does pityriasis alba start?
What causes pityriasis alba? The cause of pityriasis alba is unknown. Pityriasis alba often coexists with dry skin and atopic dermatitis. It often presents following sun exposure, perhaps because tanning of surrounding skin makes affected areas more prominent.
What is vulvar leukoplakia?
The term vulvar leukoplakia is not a histological but a descriptive diagnosis meaning “white spot”. It is used for non-inflammatory diseases characterized by pathological modification of external genitalia multilayered flat epithelium that is accompanied by skin and mucosa cornification [1].
Which vitamin deficiency causes white patches on skin?
Deficiencies in calcium, vitamin D and vitamin E can cause white patches on the skin. While harmless, these white spots indicate that you need to eat a healthy, balanced diet.
What does vulvar melanoma look like?
Ultimately, many women will develop a visible vulvar mass: the squamous cell subtype can look like elevated white, pink, or red bumps, while vulvar melanoma characteristically presents as a colored, ulcerated growth.
Does B12 deficiency cause white?
Like the condition called iron deficiency anemia, anemia related to B12 deficiency may make your skin pale due to a lack of fully-matured, healthy red blood cells in the body ( 2 ). B12 deficiency can also cause a condition called jaundice, which makes your skin and the whites of your eyes take on a yellowish color.
How is progressive macular Hypomelanosis treated?
Treatments for progressive macular hypomelanosis include: Narrowband UVB phototherapy. Oral tetracyclines. Topical anti-acne preparations eg, clindamycin and benzoyl peroxide.
What autoimmune disease can cause lichen sclerosus?
Etiology of the disease The most common autoimmune diseases associated with lichen sclerosus are autoimmune thyroiditis, alopecia areata, vitiligo, and pernicious anemia.
What does lichen sclerosus look like?
The lesions caused by lichen sclerosus usually begin as small, pinkish or whitish bumps. Over time, they become patchy, wrinkly and white, often resembling tissue paper. These patches tend to be itchy and painful. Because the affected skin is delicate, even light itching may cause bleeding.
What is progressive macular hypomelanosis (PMH)?
Progressive macular hypomelanosis (PMH) is a common skin disorder that is often misdiagnosed. Various authors have written about similar skin disorders, referring to them by different names, but we believe that all these similar disorders are part of the same entity.PMH is characterized by ill-defin …
How long does it take for progressive macular hypomelanosis to resolve?
The course of progressive macular hypomelanosis is reported to be variable. Some cases may resolve in 3–5 years. Others remain stable and yet others progress over decades and may then resolve in middle age. What is the cause of progressive macular hypomelanosis? The cause of progressive macular hypomelanosis is not known.
How is hypopigmentation differentiated from pityriasis versicolor (PMH)?
Electron microscopy shows a shift from large melanosomes in normal-looking skin to small aggregated, membrane-bound melanosomes in hypopigmented skin. PMH should be differentiated from other disorders with hypopigmentation on the trunk such as pityriasis versicolor.
What is the difference between normal and hypopigmented skin melanosomes?
3) In normal skin melanosomes are mainly supranuclear ( Photo 7, Photo 8 ), while in the hypopigmented skin melanosomes are dispersed all around the nucleus and are surrounded by a band of tonofilaments, which form a mesh entrapping them ( Photo 7 a).