Pityriasis versicolor is a common superficial fungal infection of the skin. It is essential for dermatologists to recognize it and offer an appropriate treatment. They tend to develop gradually and may join up to form. Tinea versicolor ie, pityriasis versicolor is a common superficial fungal infection. It is a benign cosmetic defect that is more prominent, and therefore more problematic, for darkskinned persons. Pathogenesis of dermatophytosis and tinea versicolor. Age rare in childhood, becomes commoner in the late teens with a peak in the early 20s. Pityriasis versicolor is a common infection of the skin caused by the yeast pityrosporum ovale. Pityriasis versicolor primary care dermatology society uk. Pityriasis versicolor pv is a common superficial fungal infection caused by yeasts of the genus malassezia. Often has a relapsing nature requiring frequent treatm.
Objective to determine the efficacy of topical or systemic agents in the treatment and prevention of pityriasis versicolor. It is caused by malassezia, a lipophilic dimorphic fungus. Diagnosis is based on clinical appearance and potassium hydroxide wet mount of skin scrapings. Variably pigmented macules of all sizes, with orthokeratotic hyperkeratosis, yeast spores and pseudohyphae within stratum corneum short hyphae and spores spaghetti and meatballs with gms or. Of the species described, those most frequently producing symptoms are m. Patients with this disorder often present with hypopigmented, hyperpigmented, or erythematous macules on the trunk and proximal upper extremities picture 1ae. Most people with this condition are concerned about the appearance of the rash. Pityriasis versicolor differentials bmj best practice. Pityriasis versicolor is a mild, chronic superficial infection of the stratum corneum layer of the skin caused by malassezia furfur andor other species of malassezia. In patients with a predisposition, tinea versicolor may chronically recur. Dermatophytoses are infections caused by keratinophilic fungi known as dermatophytes. Eruption is most common in the summer months in adolescents. Scaly, hypopigmented macules of pityriasis versicolor on the chest of a child. Tinea versicolor is characterized by the presence of fine scaly patches pityriasis or macules, which may be hypochromic or hyperchromic versicolor, that are generally located on the.
Pityriasis versicolor pv is a cutaneous pigmentation disorder caused by a lipophilic yeast of the genus malassezia sp. Pityriasis versicolor epidemiology bmj best practice. Tinea versicolor is skin infection with malassezia furfur that manifests as multiple asymptomatic scaly patches varying in color from white to tan to brown to pink. The rash often has an insidious onset and it may take months, or a sunny holiday, before it becomes noticed by the patient. Tinea versicolor, tinea nigra, white piedra, and black. Periodic acidschiff pas and methenamine silver stains can improve the visualisation of the organisms within the stratum corneum. It is more common in warm humid environments and may be seasonal. Pitiriasis versicolor farmacia profesional elsevier. Often has a relapsing nature requiring frequent treatme. A clinical and epidemiological study of pityriasis versicolor. The disease generally presents with hypopigmentation or hyperpigmentation lesions in the neck, trunk, and arms, and may occasionally cause mild itching.
This fungus is part of the normal skin flora but can cause disease when it converts to its pathogenic hyphal form. Tinea versicolor pityriasis versicolor is a superficial mycosis caused by various yeasts and lipophilic fungi of the genus malassezia, with three dominant species. Tinea pityriasis versicolor and malassezia folliculitis. Pityriasis versicolor is a common, benign, chronic superficial skin infection caused by malassezia furfur seen in all age groups. Sometimes it may cause minor symptoms such as scaling, itch or irritation. The severity of the infection depends on the type of agent, environmental factors, and the host immunologic status. Las manchas pueden verse rosadas o levemente escamosas al principio. A superficial fungal infection of the stratum corneum, due to dimorphic yeasts of the genus, leading to hypo or hyperpigmented macular lesions on seborrheic areas of the trunk. Pityriasis versicolor tinea versicolor is common infection of the stratum corneum. Files are available under licenses specified on their description page. The aads coronavirus resource center will help you find information about how you can continue to care for your skin, hair, and nails.
Data sources the cochrane skin group specialized register to june 2008, cochrane central register of controlled. An attempt is made to describe both clinical and epidemiological features in northern kerala. Clipping is a handy way to collect important slides you want to go back to later. In clinical terms, it generally presents on the trunk as round or oval macules that vary in color from hypopigmentation to blackish. Pityriasis alba is a relatively common condition characterized by hypopigmented plaques that appear most frequently on the faces of preadolescent children. How to care for your skin if you have lupus to help care for your skin during the coronavirus pandemic and beyond, the aad recommends these tips from board. The data of prevalence and risk factors vary from place to place.
Pityriasis versicolor is a common skin rash in puberty and early adult life but can occur in infants. Tinea versicolor is a chronic superficial fungal infection of the skin generally affecting the trunk or the proximal parts of the extremities and caused by various species of malassezia, primarily m. Tinea versicolor is caused by the malassezia spp yeasts, which are microorganisms that. Unlike other disorders utilizing the term tinea eg, tinea pedis, tinea capitis, tinea. Certain environmental, genetic, and immunological factors can predispose to this pathogenic conversion and contribute to the. Pityriasis versicolor, sometimes called tinea versicolor, is a common fungal infection that causes small patches of skin to become scaly and discoloured. Tinea versicolor is a common, benign, superficial cutaneous fungal infection usually characterized by hypopigmented or hyperpigmented macules and patches on the chest and the back. Tinea versicolor pityriasis versicolor clinical gate. All structured data from the file and property namespaces is available under the creative commons cc0 license. Sohnle, in encyclopedia of microbiology fourth edition, 2019. Now customize the name of a clipboard to store your clips. The cause of fungal infections is mostly lipophilia except for. Several steps are required for infection to take place.
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