(ii) Previous infections like Herpes zoster, syphilis, etc. 2014 Nov. 59 (6):571-4. Idiopathic guttate hypomelanosis is cosmetic alone, albeit, it is indicative of cumulative sun exposure. Protection Policy. See the image below. 8600 Rockville Pike 2011 Jul. Subject Self-reported Assessment of Re-pigmentation for Treated Lesions. Certain forms of hypopigmentation can indicate the presence of a systemic disorder. Child abuse / domestic violence Idiopathic guttate hypomelanosis (IGH), is a benign skin condition characterized by the presence of many round or oval hypopigmented patches varying in "Extremely helpful to have memory stick with notes of talks The yeast is lipophilic so long-chain fatty acids must be added to the media. Idiopathic Guttate Hypomelanosis: A Review of its Etiology Rosacea 27. [6]. Wallace ML, Grichnik JM, Prieto VG, Shea CR. Data Idiopathic Guttate Hypomelanosis (IGH): Differential Diagnoses Idiopathic Guttate Hypomelanosis Steroid creams are prescribed by dermatologists for a range of skin conditions, and are often a first-line treatment for IGH. The sharply demarcated hypopigmented macules were present on both covered and exposed sites, excluding sunlight exposure as a cause. [QxMD MEDLINE Link]. Is sun spots a fungus? - sempoa.jodymaroni.com Harris JE. MeSH Treatment of choice for limited disease is mid- to high-potency topical corticosteroids, although topical calcineurin inhibitors, such as tacrolimus or pimecrolimus, can also be very beneficial. 3 Ways to Treat Idiopathic Guttate Hypomelanosis - wikiHow In 2002, a case control study of 47 renal transplant patients demonstrated a significant positive association between HLA-DQ3 and the development of idiopathic guttate hypomelanosis and a significant negative association between HLA-DR8 and the development of idiopathic guttate hypomelanosis. Leukoderma is the visible result of loss of epidermal melanin. Do you have patches on your skin that are a tone lighter than your normal skin tone? In atypical cases of idiopathic guttate hypomelanosis, a biopsy may be indicated. Treatment of your hypopigmentation will depend on the underlying cause therefore a correct diagnosis of your condition is essentially the first step towards its treatment. I shall book again and already shared with colleagues arrow-right-small-blue Another pattern is orificial, with depigmented areas surrounding orifices (nares, mouth, vagina, urethra, and anus). Int J Dermatol. This site needs JavaScript to work properly. Hypopigmentation may be localised or generalised. https://www.ncbi.nlm.nih.gov/books/NBK563245/, https://dermnetnz.org/topics/pigmentation-disorders, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2594583/, https://www.buffalomedicalgroup.com/wp-content/uploads/2017/08/Hypopigmentation-Post-Inflammatory.pdf, https://knowyourskin.britishskinfoundation.org.uk/condition/vitiligo/, https://www.aafp.org/afp/2007/0401/p1053.html, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3764759/, What Is Hyperpigmentation - Causes, Treatments, Prevention Tips, Pigmentation Around Mouth: Heres How You Can Get Rid Of It. Idiopathic Guttate Hypomelanosis - Causes and Treatment - Medic conditions, Hyperpigmentation [QxMD MEDLINE Link]. The white spots are painless and benign. Travel acquired / worldwide infections It is not a sign of an internal problem. Our primary objective is to educate GPs, nurses, other [QxMD MEDLINE Link]. Alopecia (hair loss) - an overview 6. This blog post is based on scientific evidence, written and fact checked by our doctors. JAAD Int. WebTreatment for idiopathic guttate hypomelanosis in most cases is not needed as the disorder in itself is harmless. This might take upto a year to show any visible results. Also known as diffused hypopigmentation, generalised hypopigmentation affects the entire body. Leukoderma presents as a well-demarcated macule or patch of white skin with a normal surface texture or epidermal atrophy. Ash leaf spots can resemble nevus depigmentosus, a single, stable, well-circumscribed hypomelanotic macule present at birth. DIAGNOSTIC TABLE, Rash arises periodically lasting days-weeks, Macules (small flat lesions) / papules (small raised lesions), Patches / plaques (larger flat or flat-topped lesions), Pustules (small pus-filled lesions) / boils, Bullae (blisters) / vesicles (tiny blisters), Ulceration / necrosis (black non-viable skin), Skin Lesion Diagnostic Tool - how to The disorders can be genetic or acquired. We do however hope that visitors to this site can contact us regarding comments that are considered misleading or incorrect so that we can continue to improve the site. Dmso For Idiopathic Guttate Hypomelanosis Other cutaneous signs of tuberous sclerosis include facial angiofibromas (adenoma sebaceum), fibrous plaques on the forehead, periungual fibromas (Koenens tumors), and connective tissue nevi (shagreen patches). On the nature of idiopathic guttate hypomelanosis. Detailed Description: Split body design. Injury or trauma to the skin such as cuts, burns. It is a common condition that was first reported in the Western literature only step-by-step treatment advice. If you log out, you will be required to enter your username and password the next time you visit. 2010 Mar. Idiopathic guttate hypomelanosis does not appear to be due to trauma or viral infection. Pityriasis versicolor 24. Grate some ginger or its roots and rub it on your scars with hypopigmentation. Halo naevus. Bacterial or fungal infections as in macular acne or pityriasis versicolor respectively. For fungal or bacterial infections, appropriate antifungal or antibiotic medications will be prescribed by your doctor. Such light patches can occur at birth or in early infancy; they are often multiple and irregularly scattered on the body. Eczema - discoid eczema 11. Charity No. Controlled exposure to sunlight may help in production of melanin, which evens out the skin tone. Our team of dermatologists and formulators strive to be objective, unbiased and honest. You can get this form of hypopigmentation either by birth or you can acquire it during your lifetime. 2021 Jan-Mar. A Woods light examination highlights the macules and helps to identify them in fair-skinned patients. The patches are usually asymptomatic and can resemble vitiligo. Spots On Legs. Leukoderma can be seen in people of all ages and races, and both sexes. It is not a sign of an internal problem. Disclaimer. 2015;42(2):21518. Seborrhoeic eczema 29. British Association of Dermatologists, The Royal J Dermatol. C. Skin grafting can be used in patients who have discoloration due to severe burns. 2017 Apr. J Dermatolog Treat. [QxMD MEDLINE Link]. Flexures (body folds) WebIdiopathic guttate hypomelanosis is a common skin disorder of unknown cause. Fungal infections (tinea) 15. WebA: Your condition has a long name with lots of syllables: idiopathic guttate hypomelanosis. Contact leukoderma is initially localised to the site of contact, with subsequent multiple small confetti-like white spots spreading beyond the known contact area. Pigmentation follows the pattern of the initial disease, making the diagnosis straightforward in most patients. Arch Dermatol. Please use the attached consent form when obtaining images, and download and Bullae (blisters) / vesicles (tiny blisters) The use of sunscreen (SPF 30 or greater) is essential to minimize further darkening. Leukoderma The doctor may further ask you to go for a skin biopsy if leprosy, sarcoidosis or other malignancies are suspected. Natural Remedies For Idiopathic Guttate Hypomelanosis Natural Remedies BLOG The Truth About Gelatin HABITAT What Do Robins Eat? Idiopathic Guttate Hypomelanosis WebIdiopathic Guttate Hypomelanosis . Hypopigmentation might be the underlying reason. American Society of Dermatologic Surgeons. Also, length of sessions about Dr. Michael Tomeo answered The .gov means its official. Note that this may not provide an exact translation in all languages, Home Idiopathic Guttate Hypomelanosis [QxMD MEDLINE Link]. Natural Remedies For Idiopathic Guttate Hypomelanosis eczema, Other guidelines - The British DIFFERENTIAL DIAGNOSIS - Unlike IGM, Vitiligo tends to be periorificial and not confined to the lower legs. Sunburn in vitiligo, Facial vitiligo is likely to have psychosocial effects. Vitiligo is an acquired disorder of melanocytes and is characterized by complete loss of pigment. Idiopathic guttate hypomelanosis is a common condition characterised by the presence of numerous, small, white macules found predominantly on There are many causes of leukoderma some are listed below. Information provided by (Responsible Party): This pilot study included six patients with idiopathic guttate hypomelanosis on their lower extremities, which were recruited from an outpatient dermatology clinic. Note that this may not provide an exact translation in all languages, Home official website and that any information you provide is encrypted Over-the-counter treatments (for pati Peeling skin Photosensitive rashes (rashes made wo 31. Face and neck The effect of fractional carbon dioxide lasers on idiopathic guttate hypomelanosis: a preliminary study. 79(4):305-10. Before [5]. Idiopathic guttate hypomelanosis FOIA This often causes mental stress and anxiety, and sometimes even social stigma against the person having hypopigmented skin lesions. Nutritional deficiency of vitamin B12, copper or iron. Idiopathic guttate hypomelanosis is a benign condition. J Eur Acad Dermatol Venereol. Thus, the face, neck, hands and arms are most often affected. number of pharmaceutical companies. B. Fractionated resurfacing can help smoothening the complexion in patients with a mix of hypo-and hyperpigmentation due to sun damage. Affected patients have asymptomatic brown patches symmetrically on the upper lips, cheeks, forehead, and chin. No treatment is required and there is no definite treatment. Actinic (solar) keratosis 3. Joshi R. Skip areas of retained melanin: a clue to the histopathological diagnosis of idiopathic guttate hypomelanosis. right and good speakers. Most patients are pregnant women in whom the darkening is considered physiologic, although nonpregnant women taking oral contraceptives or estrogens can also develop melasma. and health professionals, Up to 30% of GP consultations have some element of skin, but yet there is limited Would you like email updates of new search results? For hypopigmentation resulting from rashes you have to make sure to treat the infections that have caused the rashes in the first place. 2018 Dec;293(6):1469-1475. doi: 10.1007/s00438-018-1475-9. Oval (ash leaf) hypopigmented macules are the earliest cutaneous sign of tuberous sclerosis. Halo naevus (a mole with a ring or halo of white skin around it), 6. Congenital hypopigmentation such as vitiligo or albilinism does not go on its own. People with different skin types develop idiopathic guttate hypomelanosis. A novel NCSTN gene mutation in a Chinese family with acne inversa. Specialist approval is required for PHARMAC subsidy. Idiopathic guttate hypomelanosis: An overview This article contains scientific references. Image Rights - The PCDS would like to thank Dermatoweb, DermQuest (Galderma), and others who have contributed images. All material on this website is protected by copyright, Copyright 1994-2023 by WebMD LLC. Cryotherapy-induced leukoderma with recurrent BCC In very rare cases hypopigmentation may be associated with certain forms of cancers. Epub 2018 Jul 20. Many other conditions resemble this dermatosis, and the more common ones are discussed briefly in the following section. Trunk (chest, abdomen, back) PMC Darker areas of skin Richard P Vinson, MD is a member of the following medical societies: American Academy of Dermatology, Texas Medical Association, Association of Military Dermatologists, Texas Dermatological SocietyDisclosure: Nothing to disclose. Normal skin color depends on melanin, hemoglobin (oxidized and reduced), and carotenoids. [QxMD MEDLINE Link]. Treatment of idiopathic guttate hypomelanosis with 5-fluorouracil tattooing using a handheld needle. 2018 Sep;68(674):444-445. doi: 10.3399/bjgp18X698825. Idiopathic guttate hypomelanosis is a very common condition to the point of being almost universal in elderly fair-skinned individuals. HHS Vulnerability Disclosure, Help Guttate Psoriasis Listing a study does not mean it has been evaluated by the U.S. Federal Government. Maranda EL, Wang MX, Shareef S, Tompkins BA, Emerson C, Badiavas EV. Idiopathic guttate hypomelanosis is a common acquired leukoderma characterized by multiple, discrete round or oval, porcelain-white macules on sun-exposed In rare cases hypopigmentation may be the foreteller of serious diseases which may require immediate medical attention. [QxMD MEDLINE Link]. eCollection 2022 Sep-Oct. Peripheral lesion findings include amoeboid, featherlike, and petaloid patterns described in lesions of idiopathic guttate hypomelanosis. Hands Treatment is not necessary. On the pathogenesis of idiopathic guttate hypomelanosis. Vitiligo is an acquired disorder of melanocytes characterized by complete loss of pigment within the skin to yield depigmented macules and patches. - how to use, THE CUNLIFFE (TP) GENERAL DERMATOLOGY This includes areas like the arms and legs. use, THE CUNLIFFE (TP) SKIN LESION DIAGNOSTIC TABLE, Trunk (chest, abdomen, back) / buttocks / axillae / groin, Leg & Other Recommend washing affected areas with an anti-dandruff shampoo twice weekly to reduce the chance of relapse. IGH is more common in people with light skin and may appear in women at younger ages than it does in men. The numbers in the parentheses are clickable links to research J Eur Acad Dermatol Venereol. Approximately 10% of affected persons are men, thereby suggesting other causes. 116(6):664-8. Accessed 12 th February 2021. Idiopathic guttate hypomelanosis. Get 200 HealthCash. You should complete the full antibiotic or antifungal course to avoid resistance to the medications. Leukoderma may recover slowly if the cause can be avoided, such as cessation of a drug or chemical exposure, or treated such as inflammatory dermatoses. Gordon JR, Reed KE, Sebastian KR, Ahmed AM. Indian J Dermatol Venereol Leprol. It often precedes the development of the typical keratotic papules and is distinct from post-inflammatory changes. The purpose of this study is to determine whether 5-FU infusion (Microinfusion of Medicine Percutaneously - MMP) is effective for Idiopathic Guttate Hypomelanosis (IGH) repigmentation compared to conventional Microneedling. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTA2ODQyMi1vdmVydmlldw==. Posted by Aline (Hoorn, North-holland Netherlands) on 10/03/2012. ETIOLOGY - Actinic damage has been proposed as a cause of IGH in Caucasians. Natural Remedies REMEDIES Activated Charcoal Activated Charcoal for BO Acupressure ACV and Baking Soda ACV for Weight Loss ACV Side Effects ACV: Where to Case Rep Dermatol Med. 2017 May. Accessibility Subject reported level of re-pigmentation for treated lesions was asse Subject reported level of re-pigmentation for treated lesions was assessed by improvement from baseline using a scale from 1 - 4 with 1 being the least amount of re-pigmentation and 4 being the most re-pigmentation: 1 = Worsening of the light spots that were treated (the light spots seem to have gotten lighter or I have more light spots in the areas that were treated); 2 = No Improvement of the light spots (light spots have not changed since starting this study); 3 = Mild improvement of the light spots (there is some darkening of the light spots, but not in more than half of them); 4 = Moderate improvement (there is some darkening of the light spots in more than half of the light spots, but not more than 75% of them). I just started to take MMS by Jim Humble and I was wondering if you think that this might help by this condition. Hypopigmentation disorders may be congenital or acquired, diffuse (generalized) or localized, and may occur in isolation or be associated with a wide range of congenital or acquired disorders [ 2-4 ]. 1980 Jun. Skin biopsy is not routinely required but can confirm the absence of melanocytes and/or melanin in the epidermis. The white patch itself is asymptomatic but there may be clinical features of the underlying condition. Bethesda, MD 20894, Web Policies COPYRIGHT 2023 EARTH CLINIC. Dermatological emergencies 9. Water's Edge Dermatology 1. https://www.ncbi.nlm.nih.gov/books/NBK563245/, 2. https://dermnetnz.org/topics/pigmentation-disorders, 3. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2594583/, 4. https://www.buffalomedicalgroup.com/wp-content/uploads/2017/08/Hypopigmentation-Post-Inflammatory.pdf, 5. https://knowyourskin.britishskinfoundation.org.uk/condition/vitiligo/, 6. https://www.aafp.org/afp/2007/0401/p1053.html, 7. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3764759/. The depigmented patches are sharply delineated, surrounded by normal or darker skin, and are usually symmetrical. [QxMD MEDLINE Link]. Typical histologic findings are epidermal atrophy of the actinic type, a patchy decrease or absence of melanocytes and melanin, flat rete ridges, and basket weave hyperkeratosis. Microscopy of malassezia. The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Genitalia, Diagnosis based on morphology White / pale areas Blistering (bullous) conditions 7. Idiopathic Guttate Hypomelanosis (IGH) is a leukoderma of unknown cause (idiopathic). Ted's Remedies, Idiopathic Guttate Hypomelanosis (White Spots) 2019 Mar;36(3):235-245. doi: 10.1007/s40266-018-00633-w. Br J Gen Pract. This section provides a quick diagnostic and treatment guide in the WebIdiopathic guttate hypomelanosis (IGH) manifests as small white spots on skin that receives high amounts of sun exposure. Study record managers: refer to the Data Element Definitions if submitting registration or results information. 20021068422-overviewDiseases & Conditions, 20021068962-overviewDiseases & Conditions, encoded search term (Idiopathic Guttate Hypomelanosis) and Idiopathic Guttate Hypomelanosis, A 27-Year-Old Woman With White Spots on Her Face, White Lesions on the Hands and Lower Extremities, Guideline for the Diagnosis and Management of Vitiligo. 1 Frequency of the condition is much lower in patients aged 21 to 30 years and does not exceed 7%. Idiopathic guttate hypomelanosis is related to the lack of pigmentary protection from the sun and sun exposure rather than to age. [7] Another hypothesis is that microtrauma to the skin may contribute to the condition. Molluscum contagiosum 19. Women are more commonly affected. If the pigmentation is deeper (within the dermis), laser therapy combined with topical therapy is often very effective. Hypopigmentation is the decrease in the amount of melanin in the skin. Dear, I'm 26 years old and have idiopathic guttate hypomelanosis. "Incontinentia pigmenti achromians (Ito)". Rambhia SH, Rambhia KD. [QxMD MEDLINE Link]. Ultrastructural study. Falabella R, Escobar C, Giraldo N, et al. Protection Policy, The Leading Dermatological Society for GPs, It is thought to be an inevitable part of ageing, with a gradual reduction in melanocytes, Inherited factors may be relevant as lesions appear to be more common in family members, Idiopathic guttate hypomelanosis is seen far more frequently in women of a younger age than in men. Lets take a closer look at what causes hypopigmentation, how is this condition diagnosed, and what are the different treatment options available. DermNet does not provide an online consultation service.If you have any concerns with your skin or its treatment, see a dermatologist for advice. Localised hypopigmentation may be caused by partial or total loss of melanin. But in rare cases hypopigmentation may be associated with skin cancers especially in patients with albinism. Post inflammatory hypopigmentation, that is loss of coloration due to scarring usually goes away on its own. Image of Darier disease from:Harb JN, Motaparthi K. Clinicopathologic findings of guttate leukoderma in Darier disease: a helpful diagnostic feature. WebDEFINITION - Idiopathic Guttate Hypomelanosis, or Disseminate Lenticular Leucoderma, comprises small, white irregularly shaped macules occurring mostly on the anterior lower legs. doi:10.1016/j.det.2016.11.006. Drugs Aging. Skin lesion algorithm - common benign 4. WebIdiopathic guttate hypomelanosis (affects shins and forearms, due to photoageing) Pityriasis alba (large patches on face and upper arms) Pityriasis rosea (short history and rapid onset) Postinflammatory hypo- or hyper- pigmentation (irregular distribution, prior inflammatory episode) Seborrhoeic dermatitis (distribution includes scalp and face) Treatments [QxMD MEDLINE Link]. Acquired Speckled Acrofacial Hypomelanosis: A Novel Presentation of an Existing Dermatosis. Photosensitive rashes (rashes made wo 22. Despite the benign course of progression, many patients visit medical centers owing to cosmetic concerns and to confirm the natural course of idiopathic guttate hypomelanosis. Web Design - Mode Ten Designs. Dermatol Clin. Idiopathic guttate hypomelanosis progresses with increasing sun exposure and, to a lesser degree, with age. link, declaration of Genetics Home Reference; Oculocutaneous Albinism; Accessed 5 th June 2020. Idiopathic guttate hypomelanosis (IGH) is another hypomelanosis disorder characterized by white macules [7]. Idiopathic Guttate Hypomelanosis: A Review of its Etiology These spots are small, but they can appear unsightly and unattractive. 1967 Dec. 96 (6):673-6. William D James, MD is a member of the following medical societies: American Academy of Dermatology, Society for Investigative DermatologyDisclosure: Received income in an amount equal to or greater than $250 from: Elsevier; WebMD
Served as a speaker for various universities, dermatology societies, and dermatology departments. Lichen sclerosus 2022 Sep 5;13(5):657-659. doi: 10.4103/idoj.idoj_633_21. Boils and folliculitis (including hid 11. Genetics play an important role in conditions such as vitiligo, which sometimes run in families. [1] X Research source You'll usually apply the topical steroid once a day for at least A. Topical steroids may be prescribed by your doctor to reduce discoloration or to add color to the lighter skin. Urticaria and angioedema 30. learning points & advise them to attend too" GP Copyright 2000-2023 The Cleveland Clinic Foundation. Brown patches Malassezia species are difficult to grow in the laboratory so scrapings may be reported as culture negative. idiopathic guttate hypomelanosis (IGH) Idiopathic Guttate Hypomelanosis Rafael Falabella, M.D. If you have any concerns with your skin or its treatment, see a dermatologist for advice. JAMA 2005;293:730-735. consent form, Website Privacy 2014 Oct 10. keratosis (syn. This is what's on the pages: DEFINITION - Idiopathic Guttate Hypomelanosis, or Disseminate Lenticular Leucoderma, comprises small, white irregularly shaped macules occurring mostly on the anterior lower legs. Fungal skin infections What Causes White Freckles On The Legs And How To Treat Them They are IGH which tends to be just confined to the lower legs. The British Association of Dermatologists has released its latest position state General Dermatology Diagnostic Tool Wu C, Yang J, Zhang S, Li J, Jin H, Zhang X. Mol Genet Genomics. Seven species have been isolated to date there is some controversy as to whether specific species cause different skin diseases. Rerknimitr P, Disphanurat W, Achariyakul M. Topical tacrolimus significantly promotes repigmentation in idiopathic guttate hypomelanosis: a double-blind, randomized, placebo-controlled study. Perioral dermatitis 21. Idiopathic Guttate Hypomelanosis Treatment WebIf the spots enhance under Woods lamp, they could be from vitiligo or a small number of other conditions. Please enable it to take advantage of the complete set of features! Idiopathic guttate hypomelanosis is a common acquired leukoderma characterized by multiple, discrete round or oval, porcelain-white macules on sun-exposed areas, especially on the extensor surface of forearms and pretibial areas. TREATMENT OPTIONS - Triamcinilone acetonide may be injected intralesionally if the lesions are cosmetically objectionable.
Served as a speaker for various universities, dermatology societies, and dermatology departments. Lichen sclerosus 2022 Sep 5;13(5):657-659. doi: 10.4103/idoj.idoj_633_21. Boils and folliculitis (including hid 11. Genetics play an important role in conditions such as vitiligo, which sometimes run in families. [1] X Research source You'll usually apply the topical steroid once a day for at least A. Topical steroids may be prescribed by your doctor to reduce discoloration or to add color to the lighter skin. Urticaria and angioedema 30. learning points & advise them to attend too" GP Copyright 2000-2023 The Cleveland Clinic Foundation. Brown patches Malassezia species are difficult to grow in the laboratory so scrapings may be reported as culture negative. idiopathic guttate hypomelanosis (IGH) Idiopathic Guttate Hypomelanosis Rafael Falabella, M.D. If you have any concerns with your skin or its treatment, see a dermatologist for advice. JAMA 2005;293:730-735. consent form, Website Privacy 2014 Oct 10. keratosis (syn. This is what's on the pages: DEFINITION - Idiopathic Guttate Hypomelanosis, or Disseminate Lenticular Leucoderma, comprises small, white irregularly shaped macules occurring mostly on the anterior lower legs. Fungal skin infections What Causes White Freckles On The Legs And How To Treat Them They are IGH which tends to be just confined to the lower legs. The British Association of Dermatologists has released its latest position state General Dermatology Diagnostic Tool Wu C, Yang J, Zhang S, Li J, Jin H, Zhang X. Mol Genet Genomics. Seven species have been isolated to date there is some controversy as to whether specific species cause different skin diseases. Rerknimitr P, Disphanurat W, Achariyakul M. Topical tacrolimus significantly promotes repigmentation in idiopathic guttate hypomelanosis: a double-blind, randomized, placebo-controlled study. Perioral dermatitis 21. Idiopathic Guttate Hypomelanosis Treatment WebIf the spots enhance under Woods lamp, they could be from vitiligo or a small number of other conditions. Please enable it to take advantage of the complete set of features! Idiopathic guttate hypomelanosis is a common acquired leukoderma characterized by multiple, discrete round or oval, porcelain-white macules on sun-exposed areas, especially on the extensor surface of forearms and pretibial areas. TREATMENT OPTIONS - Triamcinilone acetonide may be injected intralesionally if the lesions are cosmetically objectionable.