 The anatomic structure of its lesion is similar to that of actinomycosis and eumycetoma, and its granules resemble the sulfur granules of actinomycosis.The disease was originally discovered by Otto Bollinger (1843–1909) in 1870, and its name was coined by Sebastiano Rivolta (1832–1893) in 1884.The name refers to its grape-like granules (Gr. '