1. To learn about structured reporting of aneurysmal and obstructive diseases. the most stunning kind of new natural artefact. In 1562, Arcimboldo left Milan for Vienna to become court painter to Maximilian II, who like his father, Ferdinand I, was particularly interested in medicine and the natural sciences and had made his court a major centre of scientific exchange. The renowned physician Pietro Andrea Mattioli from Siena had already worked for the court of Ferdinand I, and both of his sons, Maximilian II and Ferdinand II, and had earned fame for his commentaries on the materia medica of Dioscurides, which were published in many languages. Arcimboldo became engaged in the illustration of various species of plants and animals, which the Emperor housed in his botanical and zoological gardens, most of which were particularly rare or came from the New World. As a result of his interaction with Italian physicians at royal courts in both Vienna and Bohemia his drawings were sent to a renowned natural scientist in Bologna, Ulisse Aldrovandi. He had Arcimboldo's drawings carved into wooden blocks in order to use them as illustrations in his books on quadrupeds and birds. Thus, Arcimboldo's artistic drawings came to be used as scientific illustrations.