A 37 year old female patient presented with very itchy annular scaly erythematous plaques in inframammary folds. She applied a steroid cream over it after which it started spreading towards periphery. Following is the picture of the lesion. Most likely diagnosis is?
A. Tinea corporis
C. Inverse psoriasis
Ans. A. Tinea corporis
- The clinical description given in question and the picture indicate towards the diagnosis of tinea incognito i.e. tinea infection altered by steroid use.
- Tinea corporis is dermatophytosis of the trunk, legs or arms, especially on glabous skin.
- It may have a variety of appearances.
- Most easily identifiable are the enlarging raised red rings with a central area of clearing (ringworm).
- The same appearances of ringworm may also occur on the scalp (tinea capitis), beard area (tinea barbae) or the groin (tinea cruris, known as jock itch or dhobi itch).