What skin condition may occur due to the penetration of schistosomiasis larvae?

Schistosomiasis larvae can penetrate the skin, leading to a condition known as cercarial dermatitis. This condition manifests as an itchy and inflamed rash and is the body's response to the larvae that have invaded the skin. The immune system reacts to the presence of the larvae, resulting in skin irritation and inflammation, which is characteristic of dermatitis.

This connection highlights why dermatitis is the correct choice, as it specifically describes the skin's reaction to the invasion by schistosomiasis larvae. Other conditions listed, such as urticaria, psoriasis, and folliculitis, do not directly relate to the penetration of larvae into the skin. Urticaria typically arises from allergic reactions rather than infection, psoriasis is a chronic auto-inflammatory skin condition, and folliculitis involves inflammation of hair follicles, which is not a direct result of schistosomiasis larvae. Thus, dermatitis clearly aligns with the pathology associated with schistosomiasis.