caa a22 4500 463180879 CHVBK 20180406164838.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s00381-006-0240-2 doi (NATIONALLICENCE)springer-10.1007/s00381-006-0240-2 A mature cystic teratoma in pineal region mimicking parietal encephalocele in a newborn [Elektronische Daten] [M. Baykaner, Ertan Ergun, Berker Cemil, Pelin Bayik, Hakan Emmez] Objective: Teratoma is the most frequently encountered intracranial tumor at birth and constitutes 18-20% of all germ cell tumors. They are usually located in pineal and suprasellar regions. The authors aim to report an extremely unusual presentation, location, and appearance of a teratoma in a newborn. Case report: A soft tissue swelling in the vertex was detected in a 1-month-old girl. Neurological examination was normal. A big, cystic-solid lesion beginning from pineal region and extending to the scalp was detected in magnetic resonance imaging. It is interesting to note that cerebral venous angiography showed that the superior sagittal sinus (SSS) was divided into three branches at the level of the lesion and they joined together distally. The tumor was excised totally. Histopathological examination revealed the diagnosis of a mature cystic teratoma. Conclusion: A mature cystic teratoma mimicking parietal encephalocele is extremely rare. Germ cell tumors should be kept in mind in the differential diagnosis of all midline lesions with unusual radiographic appearance. Cerebral venous angiography or MR angiography must be performed for the diagnosis and the surgical planning in lesions located near SSS. Springer-Verlag, 2006 Teratoma nationallicence Germ cell tumor nationallicence Encephalocele nationallicence Superior sagittal sinus nationallicence Pineal region tumor nationallicence Baykaner M. Division of Pediatric Neurosurgery, Department of Neurosurgery, Gazi University Medical School, Ankara, Turkey aut Ergun Ertan Department of Neurosurgery, Gazi University Medical School, Ankara, Turkey aut Cemil Berker Department of Neurosurgery, Gazi University Medical School, Ankara, Turkey aut Bayik Pelin Department of Pathology, Gazi University Medical School, Ankara, Turkey aut Emmez Hakan Department of Neurosurgery, Gazi University Medical School, Ankara, Turkey aut Child's Nervous System Springer-Verlag 23/5(2007-05-01), 573-576 0256-7040 23:5<573 2007 23 381 https://doi.org/10.1007/s00381-006-0240-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00381-006-0240-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Baykaner M. Division of Pediatric Neurosurgery, Department of Neurosurgery, Gazi University Medical School, Ankara, Turkey aut NATIONALLICENCE 700 1- Ergun Ertan Department of Neurosurgery, Gazi University Medical School, Ankara, Turkey aut NATIONALLICENCE 700 1- Cemil Berker Department of Neurosurgery, Gazi University Medical School, Ankara, Turkey aut NATIONALLICENCE 700 1- Bayik Pelin Department of Pathology, Gazi University Medical School, Ankara, Turkey aut NATIONALLICENCE 700 1- Emmez Hakan Department of Neurosurgery, Gazi University Medical School, Ankara, Turkey aut NATIONALLICENCE 773 0- Child's Nervous System Springer-Verlag 23/5(2007-05-01), 573-576 0256-7040 23:5<573 2007 23 381 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer