“…However, sacroiliac joint involvement is not exclusive to spondyloarthropathies (SpA), and there are several other conditions which may mimic sacroiliitis. Several such mimickers have been reported, including brucellosis, gluteal abscess, pyogenic sacroiliitis, tuberculosis, Ewing sarcoma, epithelioid sarcoma, osteoid osteoma, sarcoidosis, metastatic adenocarcinoma, hyperparathyroidism, osteomalacia, osteitis condensans ilii, and sacral insufficiency fracture [1][2][3][4][5][6][7][8][9][10][11]. Herein, a case of thyroid cancer who referred to a rheumatology clinic due to hip pain is reported.…”