# Tinea corporis and tinea cruris Tinea corporis, commonly known as ringworm, refers to a dermatophyte infection on the skin of sites other than face, hands, feet or groin. Tinea cruris is also known as ‘jock itch’ and occurs in the groin fold and is more frequent in adult men. Tinea corporis most commonly occurs in children and young adults. Tinea corporis (Figure 4) and tinea cruris (Figure 5) classically present as annular plaques with central clearing and leading scale. The lesions may be single or multiple and of varying sizes, which may coalesce. Pustules or vesicles can sometimes occur at the active edge. Although tinea infection is common, it is important to consider many other causes of an annular rash as described in Table 2.