Paget's disease (PD) is the second most common bone disorder after osteoporosis. It is a benign bone dystrophy characterized by a focal increase in bone remodeling associated with morphological and functional abnormalities of osteoclasts. We conducted a retrospective study of 40 cases of MP in the internal medicine department of CHU Hédi Chaker, Sfax, over a 16-year period. Our series included 22 women (55%) and 18 men (45%) with an average age of 69.7 + 9.7 years (52 and 86 years). Pain was present in 33 patients (82.5%). It was mechanical (24 cases), inflammatory (4 cases) and permanent (5...