This book is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ), which permits others to distribute the work, provided that the article is not altered or used commercially. You are not required to obtain permission to distribute this article, provided that you credit the author and journal.
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-.
![Cover of StatPearls](/corehtml/pmc/pmcgifs/bookshelf/thumbs/th-statpearls-lrg.png)
StatPearls [Internet].
Show detailsContinuing Education Activity
Tinea capitis, also known as ringworm or herpes tonsurans infection, is a fungal infection of the scalp hair. It is caused primarily by the dermatophyte species Microsporum and Trichophyton. The fungi can penetrate the hair follicle's outer root sheath and ultimately may invade the hair shaft. Clinically, tinea capitis can be divided into inflammatory and non-inflammatory types. The non-inflammatory type usually will not be complicated by scarring alopecia. The inflammatory type may result in a kerion, a painful nodule with pus, and scarring alopecia. Tinea capitis occurs primarily in children between 3 and 14 years of age, but it might affect any age group. It may also involve the eyelashes and eyebrows. This activity reviews the evaluation and management of tinea capitis and highlights the role of interprofessional team members in collaborating to provide well-coordinated care and enhance outcomes for affected patients.
Objectives:
- Identify the typical presentation of tinea capitis.
- Outline the complications of tinea capitis.
- Review the management of tinea capitis.
- Describe the importance of enhancing care coordination among the interprofessional team to ensure proper evaluation and management of tinea capitis.
Introduction
Tinea capitis is a fungal infection of the scalp hairs. Tinea capitis is also known as ringworm and herpes tonsurans infection.[1] It is caused primarily by the dermatophyte species Microsporum and Trichophyton. The fungi can penetrate the hair follicle outer root sheath and ultimately may invade the hair shaft. Clinically, tinea capitis divides into inflammatory and non-inflammatory types. The non-inflammatory type usually will not be complicated by scarring alopecia. The inflammatory type may result in a kerion (painful nodules with pus) as well as scarring alopecia.[2] Tinea capitis occurs primarily in children between 3 and 14 years of age, but it might affect any age group. It may also involve the eyelashes and eyebrows.
Etiology
Tinea capitis is caused by the dermatophyte species which have the capabilities to infect keratin and keratinized tissue including the hair. Dermatophytes include several genera like Trichophyton, Microsporum, and Epidermophyton. Some common organisms include Trichophyton Sudanese, Trichophyton tonsurans, Trichophyton verrucous, Trichophyton rubrum, and Microsporum canis.[3] Transmission of the infection takes place through direct contact with organisms from:
- Humans (Anthrophillic organisms)
- Animals (Zoophilic organisms)
- Soil (Geophilic organisms)
- Indirectly through fomites: hats, hairbrushes, etc.
Epidemiology
Tinea Capitis is a common dermatological disease. Tinea capitis is seen almost all over the world. It is most common in hot, humid climates such as Africa, Southeast Asia, and Central America. Sexual predilection varies depending on the causative dermatophytes, e.g., Trichophyton infections will affect both sexes equally during the childhood years. Microsporum canis affects boys more than girls. Tinea capitis affects children more than adults.
Pathophysiology
Dermatophytes are a common cause of infection in humans. Once acquired, the fungus grows downwards in the stratum corneum and invades the keratin. The infected hair eventually becomes brittle and then break.
Immunosuppression may lead to impaired hair shaft growth and strength leading to easier colonization. Other associated diseases include:
- Diabetes mellitus
- Prolonged steroid use
- Cancer
- Immunosuppressant medications
- Anemia
It is worth mentioning that in HIV, the risk is not increasing due to competitive colonization with Malassezia.
Hair will typically get infected in one of three principal ways:
1) Endothrix: where the fungi affect the hair shaft - an example of this type: Trichophyton tonsurans
2) Ectothrix: where the fungi affect the outer sheath root - an example of this type: Microsporum canis
3) Favus: where there is an inflammatory reaction, crusting or scutula, and hair loss - an example of this type: Trichophyton schoenleinii[4]
Histopathology
Tinea capitis shows the following histological findings:
- Subacute and chronic dermatitis either with or without follicular inflammation and destruction. Suppurative folliculitis may be present.
- Hyperkeratosis
- Parakeratosis
- Spongiosis
- A perivascular inflammatory infiltrate
Periodic acid-Schiff stain is a special stain that will help in identifying the fungi. Also, neutrophilic infiltrates might be seen in the papillary dermis.[5]
History and Physical
Tinea capitis usually affects children. Therefore, it is essential to inquire about any colleagues and friends from the school that have the same condition; this might give a clue about the mode of transmission. The infection usually starts as red papules that will increase in size with the time. As the infection spreads, it might involve the whole scalp. The skin of the infected area of the scalp may be normal close to the center of the round patch, but will probably appear irritated, red, or inflamed near the edges. Symptoms of tinea capitis include redness, itching, scale formation, and alopecia.[2]
The symptomatic presentation of ringworm infection of the scalp is quite different depending upon the causative organism. Commonly, the infection may look like severe dandruff that appears on various places on the scalp. Some infections cause patches of hair loss. The inflammatory type (kerion) is associated with pus discharge and might lead to permanent hair loss.[6] Extension to the eyelashes and eyebrows is not uncommon. Cervical lymphadenopathy is often seen in patients with kerion.
There are three distinct clinical presentations which include:
Black dot tinea capitis, which is the classical presentation: in this type, there is an infection with a fracture of the hair.
Kerion is another presentation that involves inflammation and may progress to scarring alopecia.
Favus is the boggy inflammatory type and typically presents with deep-seated oozing nodules, abscesses, crusting, or scutula.
Id reaction or an idiosyncratic reaction is caused by the immune response to the fungi. The id reaction tends to occur at a distant site and is often triggered by antifungal treatment. The id reaction presents as intense itching of vesicles, usually on the feet. It may also present as erythema nodosum or annular erythema.
Evaluation
One may consider a fungal culture swab, biopsy, or scraping from the scalp in patients with tinea capitis. A fungal culture may confirm the causative fungus. The scraping can be done and placed on a glass slide. A few drops of KOH 20% solution is added, and the slide is examined under a microscope to look for hyphae and spores.
Woods light is a modality to check for fluorescence of the infected areas. With the light of a wood, infected hairs by M. canis, M. audouinii, M. rivalieri, and M. ferrugineum will give a green to a yellow-green color. Infection with T. schoenleinii may show a blue color. It should be noted that tinea capitis caused by T tonsurans usually does not show fluorescence.
Treatment / Management
Tinea capitis can is treatable with systemic antifungal medications. Often the drug of choice is griseofulvin. The treatment is for 4 to 8 weeks. Topical treatment is not recommended, as it is ineffective.
Azole antifungal medications like itraconazole and fluconazole are also alternative treatment options. Specific presentations like kerion need anti-inflammatory treatments like systemic steroids for a short period to help to reduce the inflammatory response and also consequently lower the risk of permanent alopecia. This steroid therapy is in addition to oral antifungal treatment. Allylamines are a great option orally, like terbinafine.
Antifungal shampoos can be part of the treatment plan and often help in preventing spread, but this is not the mainstay of treatment and will usually not cure tinea capitis. Creams may also help in preventing the spread of tinea capitis but typically will not cure this condition.
Differential Diagnosis
- Dissecting folliculitis (folliculitis decalvans)
- cellulitis
- Bacterial folliculitis
- Secondary syphilis
- Abscess
- Infected eczema
- Pyoderma
- Pustular psoriasis
- Syphilis
- Seborrheic dermatitis
- Systemic lupus erythematosus
- Drug eruption reaction
Toxicity and Adverse Effect Management
Most oral antifungal treatment may increase liver enzymes, therefore, consider checking liver enzymes before initiating, during, and after therapy.
Prognosis
Tinea capitis has a good prognosis with treatment. However, those who remain untreated are at risk for the development of an abscess, also known as a kerion. The fungi can shed spores for many months leading to spread. A common cause of treatment failure is a lack of medication compliance. Tinea capitis usually has a good prognosis when treated early and appropriately.
Complications
- Hair loss
- Loss of self-esteem and ridicule
- Emotional impairment in children
Deterrence and Patient Education
All household contacts should be screened for tinea capitis. Asymptomatic individuals should be treated; otherwise, the cycle of transmission will continue.
The use of antifungal or selenium shampoo is recommended for 2 to 4 weeks. Teachers should be educated on tinea capitis and place infected children away from other healthy children. The sharing of personal care products should be avoided.
Enhancing Healthcare Team Outcomes
Tinea capitis is a very common infection in children and easily acquired. The best way to prevent and treat tinea capitis is with an interprofessional team. The majority of patients are first seen by the pediatrician, nurse practitioner, or primary care provider. The key is prompt diagnosis and initiating oral therapy. Follow up is essential to ensure cure.
Parents need to be educated about prevention. The easiest method of preventing tinea capitis is avoiding situations where the patient can acquire it from another person or animal. Health care professionals should coordinate as a team across disciplines in identifying the condition, treating, and tracking down the source of contamination.
Children should be instructed not to share caps, hairbrushes, and combs. Pillows, as well as bed linens, should be washed thoroughly. The fungi responsible for tinea capitis can live for long periods. Hair equipment needs to be cleaned and also disinfected or replaced altogether.
Working as a team and eliminating sources of contamination helps reduce the morbidity of this condition. [Level 5]
![Image](/books/NBK536909/bin/tinea__capitis.gif)
Figure
Tinea Capitis DermNet New Zealand
![Ringworm, Tinea corporis, Fungi, Fungal infection involving the skin, dermatophytic fungal organism, tinea capitis, Skin Disease Contributed by Dr](/books/NBK536909/bin/16938_lores.gif)
Figure
Ringworm, Tinea corporis, Fungi, Fungal infection involving the skin, dermatophytic fungal organism, tinea capitis, Skin Disease Contributed by Dr. Lucille K. Georg, The Centers for Disease Control and Prevention (CDC)
![Tinea capitis of the scalp showing black-dots picture](/books/NBK536909/bin/IMG_3324.gif)
Figure
Tinea capitis of the scalp showing black-dots picture. Contributed by Ahmad Al Aboud, MD
References
- 1.
- Dei-Cas I, Carrizo D, Giri M, Boyne G, Domínguez N, Novello V, Acuña K, Dei-Cas P. Infectious skin disorders encountered in a pediatric emergency department of a tertiary care hospital in Argentina: a descriptive study. Int J Dermatol. 2019 Mar;58(3):288-295. [PubMed: 30246865]
- 2.
- Souissi A, Ben Lagha I, Toukabri N, Mama M, Mokni M. Morse code-like hairs in tinea capitis disappear after successful treatment. Int J Dermatol. 2018 Dec;57(12):e150-e151. [PubMed: 30264392]
- 3.
- Coxe History of a Case of Tinea Capitis Cured by Vaccination. Med Phys J. 1807 Oct;18(104):340-341. [PMC free article: PMC5682545] [PubMed: 30492178]
- 4.
- Barlow J. Observations on the Mode of Curing the Tinea Capitis. Med Phys J. 1805 Dec;14(82):496. [PMC free article: PMC5677932] [PubMed: 30491951]
- 5.
- Al-Refu K. Clinical Significance of Trichoscopy in Common Causes of Hair Loss in Children: Analysis of 134 Cases. Int J Trichology. 2018 Jul-Aug;10(4):154-161. [PMC free article: PMC6192235] [PubMed: 30386074]
- 6.
- Chodkiewicz HM, Ranario JS, Jahan-Tigh R, MacFarlane DF. Tinea Capitis Masquerading as Basal Cell Carcinoma. Skinmed. 2018;16(4):269-271. [PubMed: 30207532]
Disclosure: Ahmad Al Aboud declares no relevant financial relationships with ineligible companies.
Disclosure: Jonathan Crane declares no relevant financial relationships with ineligible companies.
- Continuing Education Activity
- Introduction
- Etiology
- Epidemiology
- Pathophysiology
- Histopathology
- History and Physical
- Evaluation
- Treatment / Management
- Differential Diagnosis
- Toxicity and Adverse Effect Management
- Prognosis
- Complications
- Deterrence and Patient Education
- Enhancing Healthcare Team Outcomes
- Review Questions
- References
- Antifungal Activity of Neem Leaf Extract With Eucalyptus citriodora Oil and Cymbopogon martini Oil Against Tinea Capitis: An In-Vitro Evaluation.[Cureus. 2024]Antifungal Activity of Neem Leaf Extract With Eucalyptus citriodora Oil and Cymbopogon martini Oil Against Tinea Capitis: An In-Vitro Evaluation.Tiple RH, Jamane SR, Khobragade DS. Cureus. 2024 May; 16(5):e59671. Epub 2024 May 5.
- [Tinea capitis in Madagascar: a survey in a primary school in Antsirabe].[Ann Dermatol Venereol. 2006][Tinea capitis in Madagascar: a survey in a primary school in Antsirabe].Contet-Audonneau N, Grosjean P, Razanakolona LR, Andriantsinjovina T, Rapelanoro R. Ann Dermatol Venereol. 2006 Jan; 133(1):22-5.
- High Trichophyton violaceum-Induced Tinea Capitis with Isolation of Many Non-Dermatophyte Molds in Scalp Scrapings in Patients Referred to a Dermatology Clinic in Addis Ababa, Ethiopia.[Clin Cosmet Investig Dermatol....]High Trichophyton violaceum-Induced Tinea Capitis with Isolation of Many Non-Dermatophyte Molds in Scalp Scrapings in Patients Referred to a Dermatology Clinic in Addis Ababa, Ethiopia.Bitew A, Yilma B, Taye T. Clin Cosmet Investig Dermatol. 2022; 15:1313-1324. Epub 2022 Jul 11.
- Review Tinea Capitis: An Updated Review.[Recent Pat Inflamm Allergy Dru...]Review Tinea Capitis: An Updated Review.Leung AKC, Hon KL, Leong KF, Barankin B, Lam JM. Recent Pat Inflamm Allergy Drug Discov. 2020; 14(1):58-68.
- Review Tinea capitis.[Med Mycol. 2000]Review Tinea capitis.Gupta AK, Summerbell RC. Med Mycol. 2000 Aug; 38(4):255-87.
- Tinea Capitis - StatPearlsTinea Capitis - StatPearls
- dc16e07.y1 NICHD_XGC_Li1 Xenopus laevis cDNA clone IMAGE:3397284 5' similar to S...dc16e07.y1 NICHD_XGC_Li1 Xenopus laevis cDNA clone IMAGE:3397284 5' similar to SW:ANXD_CANFA Q29471 ANNEXIN XIII, mRNA sequencegi|9728836|gnl|dbEST|5702302|gb|BE5 .1|Nucleotide
- TRIM32 tripartite motif containing 32 [Homo sapiens]TRIM32 tripartite motif containing 32 [Homo sapiens]Gene ID:22954Gene
- 22954[uid] AND (alive[prop]) (1)Gene
- CBR3-AS1 CBR3 antisense RNA 1 [Homo sapiens]CBR3-AS1 CBR3 antisense RNA 1 [Homo sapiens]Gene ID:100506428Gene
Your browsing activity is empty.
Activity recording is turned off.
See more...