Case report: Sickle cell anemia avascular necrosis mimicking chronic sacroiliitis in a patient with a pre‐diagnosis of axial spondyloarthropathy.

This article presents a case report of a 43-year-old male patient with sickle cell anemia (SCA) who initially received a diagnosis of axial spondyloarthropathy (AxSpA) due to symptoms of low back pain. However, after an inadequate response to treatment, further imaging revealed sacroiliac avascular necrosis, which is a rare complication of SCA. The patient was then treated accordingly for the avascular necrosis. The article emphasizes the importance of considering osteonecrosis as a possible diagnosis in SCA patients, even in uncommon locations such as the pelvic bones, and highlights the need for accurate differential diagnosis in cases of low back pain. [Extracted from the article]

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