Leukaemic neoplasia in free-living mammals in Denmark

In a material of free-living mammals collected and necropsied during the period 1934–1984, leukaemic neoplasia was found in 1 roe deer, 1 red deer and 15 brown hares. In order to determine the types of leukaemia, a histological reexamination of the tissues was performed. The two deer had the same type, while 4 different types were found in the hares. There was no evidence suggesting a contagious nature of the neoplasia or an accumulation of cases within certain geographic areas.