Posterior migration of lumbar disc herniation - imaging dilemma due to contrast contraindication: a case report

Abstract

Disc herniation with posterior epidural migration is a rare and often symptomatic entity. Multiple are the natural barriers that prevent this pattern of migration. Enhanced magnetic resonance imaging is the diagnostic modality of choice in these cases. The diagnostic dilemma in this case was the contraindication to the use of contrast since the patient was known to have chronic renal failure.

Posterior migration of lumbar disc herniation: A case report

“…For patients with posterior epidural migration of lumbar disc fragments, surgery is the treatment of choice to prevent severe neurological deficits such as cauda equina syndrome or conus medullaris syndrome. The optimal surgical management is removal of the extruded fragment by hemilaminectomy or laminectomy [ [1] , [8] , [9] , [10] ]. In this case, the presence of neurological deficit was an indication for surgical intervention.…”

Cranial computed tomography findings in patients admitted to the emergency unit of Hospital Universitário Cajuru

“…There is a convention utilized to translate the detected voltage values into digital units, the absorption coefficient (attenuation). It is calculated in relation to the linear coefficient of water, for which the numeric value 0 is attributed, in a scale that may range from +1,000 to -1,000 Hounsfield units (HU) and is represented by a gray scale comprising a large spectrum of neuroradiology for the diagnosis and treatment of several diseases (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11) .…”