Tinea pityriasis versicolor statpearls ncbi bookshelf. It is more common in warm humid environments and may be seasonal. Although the organism is a saprophytic yeast that is part of the normal skin flora, a number of favorable conditions may trigger its conversion to the mycelial or hyphal form that is associated with. Conoce las diferencias entre pitiriasis versicolor vs vitiligo. Certain environmental, genetic, and immunological factors can predispose. These yeasts are normally found on the human skin and become troublesome only under certain circumstances, such as a warm. Pityriasis versicolor pv is a common superficial fungal infection caused by yeasts of the genus malassezia.
Pityriasis versicolor pv is a cutaneous pigmentation disorder caused by a lipophilic yeast of the genus malassezia sp. Jul 08, 2016 pityriasis versicolor most commonly affects teenagers and young adults when the sebaceous glands are more active. Diagnosis is based on clinical appearance and potassium hydroxide wet mount of skin scrapings. Tinea versicolor ie, pityriasis versicolor is a common superficial fungal infection. While you dont need to treat the rash, some patients ask for treatment to take care of the following. 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. Some people see the rash disappear within 6 to 8 weeks, but it can take 5 months or longer for the skin to clear. Treatment is with topical or sometimes oral antifungals. Pityriasis versicolor pictures, symptoms and treatment. Soung, in nelson pediatric symptombased diagnosis, 2018.
Jul 08, 2016 pityriasis versicolor is a rash caused by a yeastlike germ. Unlike other disorders utilizing the term tinea eg, tinea pedis, tinea capitis, tinea. It is well known that this organism fluoresces yellowgreen with black woods light. Pityriasis alba is characterized by oval but poorly demarcated, slightly scaly, hypopigmented macules or patches located on the face typically the cheeks, upper trunk, or extensor surfaces of the arms fig. Pityriasis versicolor, also known as tinea versicolor, is a frequent, benign, superficial fungal infection of the skin. Jan 27, 2020 tinea versicolor or pityriasis versicolor is a common superficial cutaneous fungal infection characterized by pityriasiform desquamation and hypopigmented or hyperpigmented macules formation, primarily located on the chest and back with tendency to spread.
Mar 31, 2016 pitiriasis versicolor luz marina miranda frias 2. Introduccion bonifaz a, pitiriasis versicolor, micologia medica basica, 4ta edicion. Pityriasis versicolor, sometimes called tinea versicolor, is a common fungal infection that causes small patches of skin to become scaly and discoloured. Pityriasis versicolor is one of the most frequent fungal cutaneous infections. The hypopigmentation typically persists for several months to years. Data sources the cochrane skin group specialized register to june 2008, cochrane central register of controlled. Patches of skin may be darker or lighter than your normal skin colour, or may be red, brown or pink. Pityriasis versicolor is a common infection of the skin caused by the yeast pityrosporum ovale. In the dermatological center pascua pitiriasis versicolor represents 8. Please visit our site for more information about other dermatological conditions. The rash often has an insidious onset and it may take months, or a sunny holiday, before it becomes noticed by the patient.
Pityriasis versicolor is a common superficial infection of the skin caused by the yeast malassezia furfur also known as pityrosporum ovale or pityrosporum orbiculare. Diagnosis is based on clinical appearance and potassium hydroxide wet mount of skin s. Memiliki ciriciri bersisik, tidak berwarna atau tidak berpigmen,1,3,10 dan tanpa peradangan. The majority of tinea versicolor is caused by the fungus malassezia globosa, although malassezia furfur is responsible for a small number of cases. Scaly, hypopigmented macules of pityriasis versicolor on the chest of a child. May 22, 2018 tinea versicolor has a high rate of recurrence, and prophylactic treatment with topical or oral therapy on an intermittent basis is necessary to prevent recurrences in most cases. Tinea versicolor is a condition characterized by a skin eruption on the trunk and proximal extremities. Tinea versicolor or pityriasis versicolor is a common superficial cutaneous fungal infection characterized by pityriasiform desquamation and hypopigmented or hyperpigmented macules formation, primarily located on the chest and back with tendency to spread. In tropical countries prevalence has been estimated to be as high as 3040%, whereas in the uk it is around 14%.
Pityriasis versicolor is an yeast infection that occurs at the level of the skin, leaning to the appearance of patches that are flaky and discolored especially in the chest and back area. A clinical and epidemiological study of pityriasis versicolor srirath m kambil associate professor, department of dermatology, kannur medical college, anjarakandy, kannur, kerala, india to the mycelial phase pseudofilamentous parasitic form. A clinical and epidemiological study of pityriasis versicolor. Pityriasis versicolor tinea versicolor is a chronic superficial mycosis caused by yeasts of the malassezia spp. In clinical terms, it generally presents on the trunk as round or oval macules that vary in color from hypopigmentation to blackish.
Most p eople with this condition are concerned about the appearance of the rash. This fungus is part of the normal skin flora but can cause disease when it converts to its pathogenic hyphal form. The patches can be of different colors, hence the versicolor addition to the pityriasis term used to describe the patches. Pityriasis alba may resemble tinea versicolor or tinea corporis but can be differentiated by negative koh results. Pityriasis versicolor synonyms, pityriasis versicolor pronunciation, pityriasis versicolor translation, english dictionary definition of pityriasis versicolor. If you have pityriasis rosea, the rash with go away without treatment. They tend to develop gradually and may join up to form. It is caused by malassezia, a lipophilic dimorphic fungus. Pitiriasis versicolor farmacia profesional elsevier. Malassezia species causative of pityriasis versicolor in paraguay. Pitiriasis versicolor causas, sintomas, tratamiento y fotos. Tinea versicolor due to malassezia furfur phil 2914 lores.
The most frequently affected sites are the trunk, neck, and proximal extremities. Although no therapeutic intervention is required, the use of emollients and lowpotency topical corticosteroids may be effective. Pityriasis versicolor is a rash caused by a yeastlike germ. Pityriasis versicolor is a superficial fungal infection of the skin. Pityriasis versicolor pv first described in 1801 1 and the causative fungus isolated in 1846 2, is a wellknown skin eruption due to any number of fungi of the genus malassezia.
Age rare in childhood, becomes commoner in the late teens with a peak in the early 20s. Pitiriasis versicolor salud publica enfermedades y trastornos. Clinical features of pityriasis versicolor include either hyperpigmented or hypopigmented finely scaly macules. Pityriasis versicolor definition a common chronic, noninflammatory and usually symptomless disorder, characterized by the occurrence of multiple macular patches of all sizes and shapes, and varying in pigmentation from fawncoloured to brown. Dermis pityriasis versicolor information on the diagnosis. Tinea versicolor dermatologic disorders msd manual. Pityriasis versicolor is a common skin rash in puberty and early adult life but can occur in infants.
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