Migrated herniated disc mimicking a neoplasm |
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Authors: | Benjamin Hoch George Hermann |
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Affiliation: | (1) Department of Pathology, University of Washington, Box 356100 Rm NE110 1959 N.E. Pacific St., Seattle, WA 98195, USA;(2) Department of Radiology, Mount Sinai Medical Center, One Gustave L. Levy Place, New York, NY, USA |
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Abstract: | Disc sequestration is defined as migration of a herniated disc fragment into the epidural space such that it is completely separated from the parent disc. We report a case of a migrated herniated disc that was initially pathologically diagnosed as a cartilage neoplasm. In addition to confounding morphological features, this interpretation may have been influenced by an initial radiological interpretation that did not include herniated disc in the differential diagnosis of a spinal lesion with prominent peripheral contrast enhancement. MR imaging is most helpful in considering other lesions in the differential diagnosis including abscess, hematoma, and primary or metastatic neoplasms. Pathologically, degenerative changes in herniated discs, including clustering of chondrocytes and neovascularization, may be severe resulting in a pseudoneoplastic appearance. Increased awareness of the radiological and pathological features of migrated herniated disc should limit confusion with other tumors. |
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