Abstract
The case report describes a teratoma of the sellar region with a gland forming and an immature, relatively clear undifferentiated component without signs of anaplasia. Both components express TTF-1 indicating their presumable origin in the neurohypophysis as part of the circumventricular organs. The differential diagnosis includes pituitary adenoma and spindle cell oncocytoma with inclusion of Rathke’s cleft cyst, pituitary blastoma, yolk sac tumor, and other germ cell tumors. The prognosis is the same as in the immature teratomas in the gonads, specifically unclear.
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Acknowledgments
The funding for the German Pituitary Tumor Registry to WS from Novartis Pharma GmbH (Nuremberg, Germany), Novo Nordisk Pharma GmbH (Mainz, Germany), Pfizer Pharma GmbH (Berlin, Germany), and Ipsen Pharma GmbH (Berlin, Germany) is gratefully acknowledged. We thank all colleagues for sending tumor material to the German Pituitary Tumor Registry.
Authors’ Contributions
W. Saeger: Histopathology, immunocytochemistry, and conception
A. Ebrahim: First examinations of specimens and proof reading of manuscript
R. Beschorner: First examinations of specimens
H. Spital: Clinical examinations
J. Honegger: Clinical examinations and surgery
W. Wilczak: Immunocytochemistry
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.
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Saeger, W., Ebrahimi, A., Beschorner, R. et al. Teratoma of the Sellar Region: a Case Report. Endocr Pathol 28, 315–319 (2017). https://doi.org/10.1007/s12022-016-9465-0
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DOI: https://doi.org/10.1007/s12022-016-9465-0