Infection of the olecranon bursa by Anthopsis deltoidea.

Anthopsis deltoidea was found to be the cause of an olecranon bursitis in a 79-year-old golfer. Serial histological sections of the olecranon bursa showed faintly stained, brown-walled, septate, hyphal elements in the centers of the necrotic debris. The combination of bursectomy and flucytosine treatment cured the infection.