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Chalk Stick Fracture in Ankylosing Spondylitis

Global Radiology CME

2 Ossification of vertebral ligaments present as the dagger sign on X-ray, while ossification of the outer fibers of the annulus fibrosus presents as a bamboo spine. 5 As in this case, nearly 67% of chalk stick fractures from AS present with neurologic deficits. Curr Rheumatol Rep. 2011;13(5):409-415.

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Emphysematous Pyelonephritis

Global Radiology CME

Like pyelonephritis, patients with EPN often present with fever, abdominal or flank pain, and costovertebral angle tenderness. Pyelonephritis: Radiologic-Pathologic Review. A Case of Complicated Urinary Tract Infection: Klebsiella pneumoniae Emphysematous Cystitis Presenting as Abdominal Pain in the Emergency Department.

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Ruptured Globe

Global Radiology CME

Thin-section axial CT scans followed by multiplanar reformations can visualize ruptured globe contour, which can present as a “mushroom” (Figs. The patient’s presenting visual acuity is a major determinant of their post-surgical visual acuity. 1-2) or “flat tire” shape. 7 Prognosis: Ruptured globes maintain a poor prognosis.