Volume 96, Pages (December 2016)

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Volume 96, Pages 85-90 (December 2016) Neurenteric Cyst or Neuroendodermal Cyst? Immunohistochemical Study and Pathogenesis Chun-Ting Chen, Hung-Yi Lai, Shih-Ming Jung, Ching-Yi Lee, Chieh-Tsai Wu, Shih-Tseng Lee World Neurosurgery Volume 96, Pages 85-90 (December 2016) DOI: 10.1016/j.wneu.2016.08.089 Copyright © 2016 The Author(s) Terms and Conditions

Figure 1 Photomicrograph of case 1 (A) showed a combination of 2 cell types: pseudostratified-ciliated epithelium (arrow) and columnar epithelium with goblet cells (arrowhead). Photomicrograph of case 7 (B) showed a simple cuboidal cystic lining. Hematoxylin-eosin, original magnification ×200. World Neurosurgery 2016 96, 85-90DOI: (10.1016/j.wneu.2016.08.089) Copyright © 2016 The Author(s) Terms and Conditions

Figure 2 Immunohistochemical stain of case 1 showed positive cytokeratin 7 (A). Mucin 5AC (B) was also positive, but localized only in the goblet-columnar cells (arrowhead), not in the pseudostratified-ciliated component (arrow). Original magnification ×100. World Neurosurgery 2016 96, 85-90DOI: (10.1016/j.wneu.2016.08.089) Copyright © 2016 The Author(s) Terms and Conditions

Figure 3 Magnetic resonance imaging of case 2. An intradural-extramedullary cystic lesion was noted at the anterior spinal canal of the C7 to T1 level. The cyst was isointense compared with cerebrospinal fluid in T1-weighted (A) and T2-weighted (B) image, with no gadolinium enhancement (C). Follow-up magnetic resonance imaging 3 years after treatment showed no evidence of recurrence (D). World Neurosurgery 2016 96, 85-90DOI: (10.1016/j.wneu.2016.08.089) Copyright © 2016 The Author(s) Terms and Conditions

Figure 4 Immunohistochemical stain of case 2 showed positive cytokeratin 7 (A) and mucin 5AC (B) and negative cytokeratin 20 (C), caudal-type homeobox 2 (D), mucin 2 (E), thyroid transcription factor 1 (F), human chorionic gonadotropin (G), placental alkaline phosphatase (H), and cluster of differentiation 31 (I). Original magnification ×100. World Neurosurgery 2016 96, 85-90DOI: (10.1016/j.wneu.2016.08.089) Copyright © 2016 The Author(s) Terms and Conditions