Granuloma annulare of the supra-orbital region. A case report

Granuloma annulare (GA) is a relatively infrequent condition affecting the dermis or the subcutaneous tissues. The aetiology of GA is purely speculative, but links with other diseases have been reported since the condition was first described. This paper discusses the usual presentation of GA, typical sites of involvement, and reviews the histology of the subcutaneous lesions of GA. It also reports a case of a 31-year-old patient who presented to an oral surgeon with subcutaneous lesions in the right supra-orbital region. A comparison between this lesion and another histologically similar entity is drawn. The reasoning behind the eventual definitive diagnosis is explained, and a review of the literature found GA affecting the head and neck to be rare.