 At the Institute of Pathological Anatomy in Lund, he wrote an important thesis titled "Studien über Kleinhirncysten.Bau, Pathogenese und Beziehungen zur Angiomatosae retinae", in which he described the relationship between cerebellar cysts and their correlation to tumors (angiomata) of the retina.In 1926, Lindau was the first to describe a coherent link between the retinal, cerebellar and visceral components of a disease he called "angiomatosis of the central nervous system".