A 12-year-old boy had a gradually progressive plaque on a buttock for the last 3 years. The plaque was 15 cm in diameter, annular in shape, with crusting and induration at the periphery and scarring at the centre. The most likely diagnosis –
Tinea corporis
Granuloma annulare
Lupus vulgaris
Borderline leprosy
This boy has


Annular plaque
On buttock
Crusting at periphery
Scarring at centre

These suggest the diagnosis of lupus vulgaris.
Annular lesions 

When the lesions of a skin disease are arranged in ring shape, they are called annular lesions.