Bursitis in the nonarticular part of the mandible in atopic dermatitis

The most common sites of bursitis are articulations, such as the elbows and knees; it rarely occurs in the head and neck or in non-articulation sites. A report of bursitis in the anterior tibial region, a nonarticulation site, during a flare-up of atopic dermatitis (AD) led us to suggest an association between atopic dermatitis and bursitis. We report the case of a 42-year-old man with severe AD and rare bursitis of the mandible, a nonarticulation site. He underwent several resections of his bursitis but repeatedly recurred. We treated him simultaneously with surgical treatment of his bursitis and treatment of his AD, and he recovered completely without recurrence. No previous reports of bursitis occurring at the same site have been reported. The cause of bursitis may be chronic irritation due to atopic dermatitis. It is speculated that bursitis and AD are related, and bursitis can occur at the site of AD, and complete cure can be expected by treating both simultaneously.