Cotton Wool Sign

‘It was [Vincenz] Czerny, in 1873, who first used the term ‘osteitis deformans’ to describe a condition of deformity and softening of the tibia and fibula in a young soldier. But it was not until 1876 that a clear account of the disease was rendered by Sir James Paget [1814–1899], who made a study of five cases.’ ¹