To update knowledge about Paget disease. To review radiological features in Paget's. To show a range of representative cases evaluated with different imaging techniques and collected in our hospital in recent years.

Paget’s disease or osteitis deformans was described by Sir James Paget in 1877. It is a chronic skeletal disease. It is the second most common disease in adults over 40 year old after osteoporosis. Paget’s disease is considered a focal high bone remodelling disorder that can affect just a single bone (monostotic) or multiple bones (potyostotic form), this results in bone hypertrophy, cortical expansion and aberrant bone structure. Curiously, 50 - 90% of the lesions are asymptomatic.

EPIDEMIOLOGY - Paget's disease has a characteristic geographical distribution: It presents high prevalence in United Kingdom, North America, Australia, New Zealand and Germany. It is unusal to find cases in Africa or Asia. - 3 – 4 % of people over 40 year old are affected. - It is more frequent in men than in women (3:2) and prevalence increases in both sexes with age. - Only 10 – 30 % presents monostotic form. ETIOLOGY Despite the fact that 140 years have passed since it...

Paget's disease is a frequent bone affection with specific radiological features that must be known for proper patient care.

Manaster . Roberts . Petersilge. Diagnostic Imaging: Musculoskeletal, non-traumatic diseases. MARBAN. 2010. 2/184-186 Daphne J. Theodorou1, Stavroula J. Theodorou2, Yousuke Kakitsubata. Imaging of Paget Disease of Bone and Its Musculoskeletal Complications: Review. AJR. 2011 Michael P. Whyte, M.D. Paget’s Disease of Bone. N Engl J Med 2006. P. Leon Rubio, M. LLanes Gomez, J.J. Perez venegas, S. Garcia Perez. Malignizacion de la enfermedad de Paget. Reumatol Clin. 2008 D. Cerdà, N. Guañabens, P. Peris, A. Combalia, L. Álvarez, J. Pomés, X. Tomás, A. Monegal, I....

Ainhoa Telleria Resident in Radiodiagy. Hospital of Galdakao, Galdakao-Usansolo, Spain. Contact: [email protected]