Which condition is characterized by a fungal infection that causes a circular rash on the body?

• A. Psoriasis
• B. Tinea corporis
• C. Eczema
• D. Impetigo

Answer: (B)

The condition characterized by a fungal infection that causes a circular rash on the body is tinea corporis. This infection, commonly known as ringworm, appears as a red, circular patch with clearer skin in the center, creating a ring-like appearance. Tinea corporis can be caused by various fungi and is typically spread through direct contact with an infected person or animal or through contaminated surfaces.

In contrast, psoriasis is an autoimmune disorder that leads to the rapid growth of skin cells, forming thick, scaly patches rather than a circular rash. Eczema, or atopic dermatitis, is an inflammatory skin condition associated with itchiness and redness, but it does not typically result in a circular rash caused by a fungal infection. Impetigo is a bacterial infection, characterized by red sores or blisters, often occurring around the mouth and nose, rather than the circular rash seen in tinea corporis. This distinction highlights the unique fungal etiology of tinea corporis compared to the other listed conditions.