Final answer:
Microsporum canis is the causative agent of pediatric tinea capitis but not typically found in adults. This dermatophyte is known for affecting the scalp in children, leading to symptoms such as itching, scaling, and hair loss, and treatment usually involves antifungal medications.
Step-by-step explanation:
The causative agent of pediatric tinea capitis but not commonly found in adults is Microsporum canis. Tinea capitis, also known as ringworm of the scalp, is a fungal infection that affects the hair and scalp. While several species can cause tinea capitis, Microsporum canis is particularly known for affecting children. Unlike Trichophyton tonsurans, which can affect both adults and children, and Epidermophyton floccosum and Malassezia furfur, which typically do not cause tinea capitis, Microsporum canis is predominantly associated with scalp infections in pediatric populations.
Tinea capitis can lead to various symptoms, including scaling, itching, and hair loss. The infection is transmitted through contact with infected hairs or fungal spores from animals, particularly cats and dogs, or less commonly, from human to human transmission. It's important to seek medical treatment for tinea capitis, as it can lead to complications if left untreated. Antifungal medications are typically prescribed to clear up the infection.