Mass in thoracic spine: A case of a retained intradural extramedullary foreign body

Publication date: Available online 18 May 2017
Source:Clinical Imaging
Author(s): Nakul Reddy, Peter Fata, Anthony Balzer, Pedro Diaz-Marchan, Christie Lincoln
Foreign bodies in the spine are most commonly traumatic and managed in an acute setting. A few case reports describe foreign bodies resulting in delayed neurologic dysfunction, most commonly iatrogenic or from penetrating injury. We present a 30-year old man with lower extremity weakness from an intradural extramedullary foreign body granuloma secondary to a thorn, which was initially thought to represent an aggressive malignant process with intra and extramedullary involvement on MR. Postoperatively, the patient endorsed a causative trauma several years prior. We also present a review of the few similar published cases as well as the described prototypical imaging features and pathologic process.



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