Tinea manuum

A fungal infection of the hand

Tinea manuum is a dermatophyte infection of the hands, characterized by a fungal infection that typically affects the palms and can extend to the fingers and the back of the hands. It is a form of tinea, which is a group of diseases caused by fungi known as dermatophytes.

Signs and symptoms

Tinea manuum affecting the palm of the hand

Tinea manuum often presents as a dry, scaly rash on the palms. The affected area may appear red and inflamed, and the skin can become thickened and cracked. In some cases, the infection may cause itching or a burning sensation. The condition is often unilateral, affecting only one hand, and is sometimes associated with tinea pedis (athlete's foot), leading to the "two feet-one hand" syndrome.

Causes

Tinea manuum is caused by dermatophyte fungi, which are capable of digesting keratin, a protein found in the skin, hair, and nails. The most common species responsible for tinea manuum include Trichophyton rubrum and Trichophyton mentagrophytes. These fungi thrive in warm, moist environments and can be transmitted through direct contact with infected individuals or contaminated surfaces.

Diagnosis

Diagnosis of tinea manuum is typically made based on clinical appearance and patient history. A potassium hydroxide (KOH) preparation of skin scrapings can be used to confirm the presence of fungal elements. In some cases, a fungal culture may be performed to identify the specific species of dermatophyte involved.

Treatment

Treatment of tinea manuum involves the use of topical or oral antifungal medications. Topical treatments, such as clotrimazole or terbinafine, are often effective for mild cases. For more severe or extensive infections, oral antifungal agents like itraconazole or fluconazole may be prescribed. It is important to continue treatment for the full duration recommended by a healthcare provider to prevent recurrence.

Prevention

Preventive measures for tinea manuum include maintaining good hand hygiene, keeping the hands dry, and avoiding direct contact with infected individuals or contaminated surfaces. Wearing protective gloves in environments where exposure to fungi is likely can also help reduce the risk of infection.

Related pages

• Tinea pedis
• Tinea corporis
• Dermatophyte
• Antifungal