{
"topic": "Tinea Versicolor",
"slug": "tinea-versicolor",
"category_id": 15900,
"passage_count": 14,
"source_chars": 11838,
"enough_material": true,
"references": [
{
"title": "Zitelli and Davis' Atlas of Pediatric Physical Diagnosis: Expert Consult - Online",
"author": null,
"pages": [
341
]
},
{
"title": "Red Book Atlas of Pediatric Infectious Diseases",
"author": "American Academy of Pediatrics,Carol J. Baker, MD, FAAP",
"pages": [
463,
526
]
},
{
"title": "Red Book 2018",
"author": "Kimberlin, David W.; Long, Sarah S.; Brady, Michael T.",
"pages": [
686
]
},
{
"title": "Pediatric Board Study Guide",
"author": null,
"pages": [
1113
]
},
{
"title": "CURRENT Diagnosis and Treatment Pediatrics, Twenty-Fourth Edition",
"author": "Hay, William W., Levin, Myron J., Deterding, Robin R., Abzug, Mark J.",
"pages": [
443
]
},
{
"title": "Red Book Atlas 4th Ed.indb",
"author": "American Academy of Pediatrics;Carol J. Baker, MD, FAAP;",
"pages": [
528
]
},
{
"title": "Red_Book_2021_2024_Report_of_the_Comm_z_library_sk,_1lib_sk,",
"author": null,
"pages": [
640
]
},
{
"title": "Cover",
"author": "Vitalsource Download",
"pages": [
4218,
5049
]
}
],
"passages": [
{
"source": "Zitelli and Davis' Atlas of Pediatric Physical Diagnosis: Expert Consult - Online, p. 341",
"text": "## **Tinea Versicolor** Tinea versicolor is a common dermatosis characterized by multiple small, oval, scaly patches measuring 1 to 3 cm in diameter, usually located in a guttate or raindrop pattern on the upper chest, back, and proximal portions of the upper extremities of adolescents and young adults (Fig. 8-39, _A_ and _B_ ). However, all ages may be affected, including infants. Facial involvement occurs occasionally. The eruption is caused by a dimorphous form of _Pityrosporum._ Warm, moist climates, pregnancy, immunodeficiency, and genetic factors predispose people to the development of infection. **318** Zitelli and Davis\u2019 Atlas of Pediatric Physical Diagnosis  **----- Start of picture text -----**
A B
C
**----- End of picture text -----**
"
},
{
"source": "Red Book Atlas of Pediatric Infectious Diseases, p. 463",
"text": "## Incubation Period ## Pityriasis Versicolor (Tinea Versicolor) ## Clinical Manifestations Pityriasis versicolor (formerly tinea versicolor) is a common and benign superficial infection of the skin. It classically occurs in adolescence and involves the upper trunk and neck. Infants and children are more likely to exhibit facial involvement. The condition can occur at any age and may involve other areas, including the scalp, genital area, and thighs. Symmetric involvement with ovoid discrete or coalescent lesions of varying size is typical; these macules or patches vary in color, even in the same person. White, pink, tan, or brown coloration is often surmounted by faint dusty scales. Common conditions confused with this disorder include pityriasis alba, vitiligo, seborrheic dermatitis, pityriasis rosea, progressive macular hypopigmentation, pityriasis lichenoides, and secondary syphilis. ## Etiology"
},
{
"source": "Red Book 2018, p. 686",
"text": "## Pityriasis Versicolor ## (Formerly Tinea Versicolor) **CLINICAL MANIFESTATIONS:** Pityriasis versicolor (formerly tinea versicolor) is a common and benign superficial infection of the skin, classically manifesting on the upper trunk and neck. In infants and children, the infection is likely to involve the face, particularly the bilateral temples. Infection can include other areas, including the scalp, genital area, and thighs. Symmetrical involvement with ovoid discrete or coalescent lesions of varying size is typical; these macules or patches vary in color, even in the same person. White, pink, tan, or brown coloration is often surmounted by faint dusty scales. Lesions fail to tan during the summer and are relatively darker than the surrounding skin during the winter, hence the term versicolor. The differential diagnosis includes pityriasis alba, vitiligo, seborrheic dermatitis, pityriasis rosea, progressive macular hypopigmentation, and pityriasis PITYRIASIS VERSICOLOR 636"
},
{
"source": "Pediatric Board Study Guide, p. 1113",
"text": "with oval scaly papules and plaques on the trunk that run Pityriasis rosea
parallel to skin cleavage lines
Adolescent boy with hypopigmented-hyperpigmented round Tinea versicolor
and oval macules on the neck, chest, and back that worsen with sun
exposure
What is the cause of tinea versicolor? Malassezia furfur
Child with an itchy rash affecting both feet. Exam shows scaling, Topical antifungal cream, e.g., terbinafine
fissuring, and maceration in the interdigital spaces. What is the best cream
treatment?
**----- End of picture text -----**
"
},
{
"source": "CURRENT Diagnosis and Treatment Pediatrics, Twenty-Fourth Edition, p. 443",
"text": "## **2. Tinea Versicolor** Tinea versicolor is a superficial infection caused by _Malassezia globosa_ , a yeast-like fungus. It characteristically causes polycyclic connected hypopigmented macules and very fine scales in areas of sun-induced pigmentation. In winter, the polycyclic macules appear reddish brown. Recurrent infection is common. ## \u00bb **Treatment** Treatment consists of application of selenium sulfide (Selsun), 2.5% suspension, zinc pyrithione shampoo, or topical antifungals. Selenium sulfide and zinc pyrithione shampoo should be applied to the whole body and left on overnight. Treatment can be repeated again in 1 week and then monthly thereafter. It tends to be somewhat irritating, and the patient should be warned about this difficulty. Topical antifungals are applied twice a day for 1\u20132 weeks. Fluconazole 400 mg single dose may also be used."
},
{
"source": "Red Book Atlas 4th Ed.indb, p. 528",
"text": "Pityriasis versicolor (formerly tinea versicolor) is a common and benign superficial infection of the skin, classically manifesting on the upper trunk and neck. In infants and children, the infection is likely to involve the face, particularly the bilateral temples. Infection can include other areas, including the scalp, genital area, and thighs. Symmetrical involvement with ovoid discrete or coalescent lesions of varying size is typical; these macules or patches vary in color, even in the same person. White, pink, tan, or brown coloration is often surmounted by faint dusty scales. Lesions fail to tan during the summer and are relatively darker than the surrounding skin during the winter, hence the term versicolor. The differential diagnosis includes pityriasis alba, vitiligo, seborrheic dermatitis, pityriasis rosea, progressive macular hypopigmentation, and pityriasis lichenoides. Folliculitis also can occur, particularly in immunocompromised patients. Systemic infections can occur in neonates, particularly"
},
{
"source": "Red Book Atlas 4th Ed.indb, p. 528",
"text": "Pityriasis versicolor (formerly tinea versicolor) is a common and benign superficial infection of the skin, classically manifesting on the upper trunk and neck. In infants and children, the infection is likely to involve the face, particularly the bilateral temples. Infection can include other areas, including the scalp, genital area, and thighs. Symmetrical involvement with ovoid discrete or coalescent lesions of varying size is typical; these macules or patches vary in color, even in the same person. White, pink, tan, or brown coloration is often surmounted by faint dusty scales. Lesions fail to tan during the summer and are relatively darker than the surrounding skin during the winter, hence the term versicolor. The differential diagnosis includes pityriasis alba, vitiligo, seborrheic dermatitis, pityriasis rosea, progressive macular hypopigmentation, and pityriasis lichenoides. Folliculitis also can occur, particularly in immunocompromised patients. Systemic infections can occur in neonates, particularly"
},
{
"source": "Red_Book_2021_2024_Report_of_the_Comm_z_library_sk,_1lib_sk,, p. 640",
"text": "**CLINICAL MANIFESTATIONS:** Pityriasis versicolor (formerly tinea versicolor) is a common and benign superficial infection of the skin, classically manifesting on the upper trunk and neck. Most patients are asymptomatic, although some may complain of pruritus. In infants and children, the infection is likely to involve the face, particularly the temples. Infection can include other areas, including the scalp, genital area, and thighs. Symmetrical involvement with ovoid discrete or coalescent lesions of varying size is typical; these macules or patches vary in color, even in the same person. White, pink, tan, or brown coloration is often surmounted by faint dusty scales. Lesions fail to tan during the summer and are relatively darker than the surrounding skin during the winter, hence the term versicolor. The differential diagnosis includes pityriasis alba, vitiligo, seborrheic dermatitis, pityriasis rosea, pityriasis lichenoides, progressive macular hypopigmentation, and dyschromatosis universalis"
},
{
"source": "Cover, p. 5049",
"text": "## **TINEA VERSICOLOR** Tinea versicolor is a superficial skin infection caused by the dimorphic lipophilic fungus _Malassezia furfur_ , also known as _Pityrosporum ovale_ and _Pityrosporum orbiculare_ , depending on the form of the yeast phase. This organism is a lipiddependent yeast that is part of normal human skin flora in 90% to 100% of individuals. Although most cases occur during the postpubertal period, tinea versicolor may occasionally occur in prepubertal children. Infection localizes to areas of skin that are rich in lipid-producing sebaceous glands, including the chest, back, and face."
},
{
"source": "Red Book Atlas of Pediatric Infectious Diseases, p. 526",
"text": "Pityriasis versicolor (formerly tinea versicolor) is a common and benign superficial infection of the skin, classically manifesting on the upper trunk and neck. Most patients are asymptomatic, although some may experience pruritus. in infants and children, the infection is likely to involve the face, particularly the temples. infection can include other areas, including the scalp, genital area, and thighs. symmetrical involvement with ovoid discrete or coalescent lesions of varying size is typical; these macules or patches vary in color, even in the same person. White, pink, tan, or brown coloration is often surmounted by faint, dusty scales. lesions fail to tan during the summer and are relatively darker than the surrounding skin during the winter, hence the term _versicolor._ the differential diagnosis includes pityriasis alba, vitiligo, seborrheic dermatitis, pityriasis rosea, pityriasis lichenoides, progressive macular hypopigmentation, and dyschromatosis universalis hereditaria. Folliculitis can also"
},
{
"source": "2021_Fleisher_&_Ludwig's_Textbook_of_Pediatric_Emergency_Medicine.epub",
"text": "Tinea Versicolor Tinea versicolor refers to a superficial infection of the skin caused by Malassezia , which produces color changes of the skin, hypopigmentation, hyperpigmentation, and sometimes a salmon-colored redness ( Figs. 88.17 and 88.25 ). Wood light examination usually shows yellowish-brown fluorescence. Because moisture promotes growth of the organism, exacerbations occur in warm weather or in athletes who sweat excessively. The infection is difficult to eradicate and recurs frequently. A KOH preparation shows short, stubby hyphae and large clusters of spores, often referred to as \u201cspaghetti and meatballs.\u201d"
},
{
"source": "Cover, p. 4218",
"text": "## **CLINICAL MANIFESTATIONS** Tinea versicolor is the prototypic skin disease associated with _Malassezia_ . Tinea versicolor lesions are most commonly seen on the chest, back, and upper arms and occur most often in adolescents and young adults. In those who develop tinea versicolor, _Malassezia_ transforms from the yeast phase to the mycelial phase. This results in the characteristic \u201cspaghetti and meatballs\u201d appearance of skin scrapings. Heat, moisture, and skin occlusion favor this transformation. _M globosa, M restricta, M sympodialis_ , and _M furfur_ are the most common causes of tinea versicolor."
},
{
"source": "Cover, p. 5049",
"text": "Tinea versicolor occurs when the yeast form of the organism converts to the mycelial form, a transition that may be prompted by various predisposing factors, including heat, humidity, sweating, and skin occlusion. Individual host susceptibility and immunosuppression may also play a role. The most common clinical findings are sharply demarcated, hypopigmented macules and patches that may have associated fine scaling ( **Fig. 362-11** ). Other presentations include hyperpigmented or erythematous patches, particularly in dark-skinned individuals. Pruritus is occasionally present. The hypopigmented areas become more noticeable after unprotected sun exposure, caused by uneven tanning of the surrounding uninvolved skin. The hypopigmentation seen in tinea versicolor is attributed to a product of the fungus, azelaic acid, which inhibits dopatyrosinase, an enzyme involved in the melanin synthetic pathway. "
},
{
"source": "Kliegman R. Nelson Textbook of Pediatrics 2-Volume Set 22ed 2024, p. 4201",
"text": "## **Clinical Manifestations** The lesions of tinea versicolor vary widely in color. In lighter skin, they are typically reddish brown, whereas in darker skin, they may be either hypopigmented or hyperpigmented. The characteristic macules are covered with a fine scale. They often begin in a perifollicular location, enlarge, and merge to form confluent patches, most commonly on the neck, upper chest, back, and upper arms (Fig. 707.1). Facial lesions are common in adolescents; lesions occasionally appear on the forearms, dorsum of the hands, and pubis. There may be little or no pruritus. Involved areas do not tan after sun exposure. A papulopustular perifollicular variant of the disorder may occur on the back, chest, and sometimes the extremities. These pustules tend to be monomorphic. ## **Differential Diagnosis**"
}
]
}