RT Journal Article SR Electronic T1 Not Everything is Osteoporosis: Multiple Low-Impact Fractures in an Adult Female Patient JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.2024-0672 DO 10.3899/jrheum.2024-0672 A1 Mazeda, Caroline A1 Azevedo, Sofia A1 Sousa, Sérgio A1 Barcelos, Anabela YR 2025 UL http://www.jrheum.org/content/early/2025/01/26/jrheum.2024-0672.abstract AB Pycnodysostosis is a subtype of osteopetrosis resulting from mutations in the cathepsin K gene (CTSK) on chromosome 1q21.1,2 We report the case of a 47-year-old White female patient attending a rheumatology clinic with a history of multiple low-impact fractures in adulthood, including left and right subtrochanteric fractures and tibial shaft fractures at the ages of 46, 40, 31, and 22 years, respectively.