Ganesh Singh Dharmshaktu
There are several characteristic clinical and radiological features associated with ankylosing spondylitis that help in the diagnosis of this debilitating condition. The dagger sign is one of the described radiological sign resulting from fusion of contiguous spinous processes forming a dagger like appearance. Sternum, with fused manubrio-sternal or xiphisternal joints in advanced disease, can also look like a dagger that is often underappreciated. We highlight this often overlooked ‘dagger’ to be acknowledged and further evaluated as associated entity of this spondyloarthropathy.
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