Tinea Capitis Diagnosis
Tinea Capitis Diagnosis
Tinea capitis symptoms on the scalp may or may not actually lead to a definite tinea capitis diagnosis. It is sometimes hard to tell the source of the fungus or if it is an actual fungal infection. This is a skin disorder that affects children almost exclusively. Tinea capitis is easily and frequently mistaken for other infections. Non-fungal conditions that resemble tinea infections include impetigo, Seborrhoeic dermatitis, Psoriasis, Discoid eczema, Lichen simplex, Contact allergic dermatitis and Pityriasis rosea. Suggestions for prevention include things like keeping the area clean. Using a medicated shampoo, with ingredients like ketoconazole or selenium sulfide, may reduce the spread of infection. It may be necessary for other family members and pets to be examined and treated.
There are options that can be explored to help with diagnosis. Some are a skin lesion biopsy with microscopic examination can be done or culture or a Wood’s lamp test to confirm a fungal scalp infection. The Wood’s lamp examination can be useful in evaluating the scope of infection, identifying areas for sampling and determining treatment response when the Tinea capitis diagnosis is positive. The examination can also be useful for looking at the contacts of an infected person.
Most dermatophytes do not fluoresce during examination but there are exceptions to this rule. Two of those exceptions are zoophilic dermatophytes. Zoonotic means the disease can be passed from animals to humans. Cats are more likely to be infected with Tinea capitis of all animals. The skin changes in cats are very similar to those of affected people, but cats can carry the infection without exhibiting obvious signs just like infected humans.
Fungal organisms known as dermatophytes may cause scalp ringworm by infecting certain kinds of tissue found in hair, skin, and nails. It can be persistent as well as contagious. Symptoms may consist of itching, scaly, and inflamed balding areas on the scalp. The specific pattern of fungal scalp ringworm depends on the infecting organisms. Ringworm of the scalp or beard may look like dandruff with flakes of dead skin on the hair or beard. The infection can spread gradually and cover a large area. Oral antifungal medications are required to treat the infection. It is estimated that 3-8% of the population is affected by ringworm in the United States alone. Some people can carry the infection and pass it to others in the household. In other countries, statistics show an estimated 9.6% of people are affected to varying degrees, and nearly 40% can be carriers.
