Intraparenchymal endodermal cyst with spontaneous intracystic hemorrhage in the temporal lobe of an adult. Issue 46 (November 2016)

• Record Type: Journal Article
• Authors: Bao, Xin-Jie; Li, Xue-Yuan; Wang, Qi-Pu; Ren, Xin-Yu; Liang, Zhi-Yong; Ma, Wen-Bin; Wang, Ren-Zhi; Wei, Jun-Ji
• Editors: Liu., Yong
• Is Part Of: Medicine. Volume 95:Issue 46(2016)
• Page Start: e4968
• Publication Date: 2016-11
• Subjects: brain abscess -- case report -- endodermal cyst -- hemorrhage -- neurenteric cyst; Medicine -- Periodicals; Medicine -- Periodicals; Médecine -- Périodiques; Geneeskunde; Medicine; Periodicals; Periodicals; 610.5
• DOI: 10.1097/MD.0000000000004968
• Languages: English
• ISSNs: 0025-7974

Abstract

Abstract: Background: Endodermal cysts (EC) are rare but well-known congenial lesions of the central nervous system mainly located in the spinal subdural space. Intracranial ECs are rare and commonly encountered in the posterior cranial fossa as extra-axial lesions; an intraparenchymal location is exceedingly rare. A complete removal is the best surgical strategy and any residue can cause recurrence. It is necessary to exclude EC in patients with intracranial cystic lesions. We present a case of intraparenchymal EC with spontaneous intracystic hemorrhage in the temporal lobe of an adult. Methods: A 43-year-old man presented with headache and memory deterioration. Brain computed tomography and magnetic resonance imaging showed a slightly enhanced temporal lobe cystic lesion, which was homogenously hyperintense on T1-and T2-weighted images. There was a suspicion of brain abscess at admission. The lesion was totally removed with a left subtemporal craniotomy. Histological examination revealed an EC with intracystic hemorrhage. Results: The preoperative symptoms were relieved after surgery and 3-month follow-up magnetic resonance imaging found no cystic signs. Conclusion: This case suggests that EC should be considered in the differential diagnosis of intracranial cystic lesions and a complete removal is the best strategy of choice.