Vajtai, Istvan

Sturm, Dominik; Orr, Brent A; Toprak, Umut H; Hovestadt, Volker; Jones, David T W; Capper, David; Sill, Martin; Buchhalter, Ivo; Northcott, Paul A; Leis, Irina; Ryzhova, Marina; Koelsche, Christian; Pfaff, Elke; Allen, Sariah J; Balasubramanian, Gnanaprakash; Worst, Barbara C; Pajtler, Kristian W; Brabetz, Sebastian; Johann, Pascal D; Sahm, Felix; ... (2016). New Brain Tumor Entities Emerge from Molecular Classification of CNS-PNETs. Cell, 164(5), pp. 1060-1072. Cell Press 10.1016/j.cell.2016.01.015

Andereggen, Lukas; Vajtai, Istvan; Widmer, Hans Rudolf; Raabe, Andreas; Andres, Robert (2015). Rapid Recurrence of a Benign Meningial Perineurioma. World neurosurgery, 84(6), 2074.e1-2074.e3. Elsevier 10.1016/j.wneu.2015.06.001

Hewer, Ekkehard; Dettmer, Matthias; Vajtai, Istvan (2015). Oligoastrocytoma: Who's afraid of the … Liger? Histopathology, 68(7), pp. 1115-1117. Blackwell Scientific Publications 10.1111/his.12905

Hewer, Ekkehard; Beck, Jürgen; Kellner-Weldon, Frauke; Vajtai, Istvan (2015). Suprasellar chordoid neoplasm with expression of thyroid transcription factor 1: evidence that chordoid glioma of the third ventricle and pituicytoma may form part of a spectrum of lineage-related tumors of the basal forebrain. Human pathology, 46(7), pp. 1045-1049. Elsevier 10.1016/j.humpath.2015.03.005

Hewer, Ekkehard; Vajtai, Istvan; Dettmer, Matthias; Berezowska, Sabina Anna; Vassella, Erik (2015). Combined ATRX/IDH1 immunohistochemistry predicts genotype of oligoastrocytomas. Histopathology, 68(2), pp. 272-278. Blackwell Scientific Publications 10.1111/his.12743

Hewer, Ekkehard; Vajtai, Istvan (2015). Consistent nuclear expression of thyroid transcription factor 1 in subependymal giant cell astrocytomas suggests lineage-restricted histogenesis. Clinical neuropathology, 34(3), pp. 128-131. Dustri-Verlag 10.5414/np300818

Hewer, Ekkehard; Mariani, Luigi; Vajtai, Istvan (2015). Glioma-like proliferation in a cortical hamartoma of tuberous sclerosis complex. Brain pathology, 32(1), pp. 76-78. Blackwell 10.1007/s10014-014-0185-1

Antonini, Linda; Vajtai, Istvan; Bornstein, Michael (2015). Das zentrale Riesenzellgranulom: Ein Fallbericht. Swiss dental journal, 125(9), pp. 954-955. Schweizerische Zahnärzte-Gesellschaft SSO

Fadda, Angela; Vajtai, Istvan; Lang, Johann; Henke, Diana; Oevermann, Anna (2014). Cerebral High-grade Oligodendroglioma with Sarcomatous Transdifferentiation ("Oligosarcoma") in a Boxer Dog. Journal of veterinary internal medicine, 28(6), pp. 1881-1885. Wiley-Blackwell 10.1111/jvim.12457

Hewer, Ekkehard; Beck, Jürgen; Murek, Michael; Kappeler, Andreas; Vassella, Erik; Vajtai, Istvan (2014). Polymorphous oligodendroglioma of Zülch revisited: a genetically heterogeneous group of anaplastic gliomas including tumors of bona fide oligodendroglial differentiation. Neuropathology, 34(4), pp. 323-332. Wiley 10.1111/neup.12097

Hewer, Ekkehard; Beck, Jürgen; Vassella, Erik; Vajtai, Istvan (2014). Anaplastic oligodendroglioma arising from the brain stem and featuring 1p/19q co-deletion. Neuropathology, 34(1), pp. 32-38. Wiley 10.1111/neup.12043

Mathys, Jan; Vajtai, Istvan; Vögelin, Esther; Zimmermann, Dieter R; Ozdoba, Christoph; Hewer, Ekkehard (2014). Desmoplastic small round cell tumor: A rare cause of a progressive brachial plexopathy. Muscle & nerve, 49(6), pp. 922-927. John Wiley & Sons 10.1002/mus.24165

Heim, Stephanie; Beschorner, Rudi; Mittelbronn, Michel; Keyvani, Kathy; Riemenschneider, Markus J; Vajtai, Istvan; Hartmann, Christian; Acker, Till; Blümcke, Ingmar; Paulus, Werner; Hasselblatt, Martin (2014). Increased mitotic and proliferative activity are associated with worse prognosis in papillary tumors of the pineal region. The American journal of surgical pathology, 38(1), pp. 106-110. Lippincott Williams & Wilkins 10.1097/PAS.0b013e31829e492d

Haemmig, Stefan; Baumgartner, Ulrich; Glück, Astrid; Zbinden, Samuel; Tschan, Mario; Kappeler, Andreas; Mariani, L; Vajtai, Istvan; Vassella, Erik (2014). miR-125b controls apoptosis and temozolomide resistance by targeting TNFAIP3 and NKIRAS2 in glioblastomas. Cell death & disease, 5(e1279), e1279. Nature Publishing Group 10.1038/cddis.2014.245

Stanger, Katrin; de Kerviler, Sora; Vajtai, Istvan; Constantinescu, Mihai Adrian (2013). The riddle of multinucleated "floret-like" giant cells and their detection in an extensive gluteal neurofibroma: a case report. Journal of medical case reports, 7(189), p. 189. BioMed Central 10.1186/1752-1947-7-189

Hewer, Ekkehard; Genitsch Gratwohl, Vera; Schäfer, Stephan; Vajtai, Istvan (2013). Cytokeratin-positive epithelioid gastrointestinal stromal tumor of the stomach - a comment on "gastric undifferentiated carcinoma with diffuse c-kit overexpression and focal neuroendocrine differentiation". Pathology, research and practice, 209(7), pp. 467-468. Elsevier 10.1016/j.prp.2013.04.015

Leu, Severina; von Felten, Stefanie; Fränkl, Stephan; Vassella, Erik; Vajtai, Istvan; Taylor, Elisabeth; Schulz, Marianne; Hutter, Gregor; Hench, Jürgen; Schucht, Philippe; Boulay, Jean-Louis; Mariani, Luigi (2013). IDH/MGMT-driven molecular classification of low-grade glioma is a strong predictor for long-term survival. Neuro-Oncology, 15(4), pp. 469-479. Oxford University Press 10.1093/neuonc/nos317

Schürch, Christian; Birrer, Michèle Andrea; Estella, Isabelle; Kappeler, Andreas; Hewer, Ekkehard; Vajtai, Istvan (2013). "Leiomyomatoid angiomatous neuroendocrine tumor" (LANT) of the pituitary reflects idiosyncratic angiogenesis in adenomas of the gonadotroph cell lineage. Pathology, research and practice, 209(3), pp. 155-160. Elsevier 10.1016/j.prp.2013.01.003

Guevara, Carlos; Seidel, Ulrich; Hewer, Ekkehard; Vajtai, Istvan (2013). Intraosseous traumatic neuroma of the lumbar spine: a previously unrecognized form of vertebral pseudotumor. Clinical neuropathology, 32(3), pp. 189-191. München-Deisenhofen: Dustri-Verlag 10.5414/NP300568

Thommen, François; Hewer, Ekkehard; Schäfer, Stephan; Vassella, Erik; Kappeler, Andreas; Vajtai, Istvan (2013). Rosette-forming glioneuronal tumor of the cerebellum in statu nascendi: an incidentally detected diminutive example indicates derivation from the internal granule cell layer. Clinical neuropathology, 32(5), pp. 370-376. Dustri-Verlag 10.5414/NP300612

Vajtai, Istvan; Hewer, Ekkehard; Neuenschwander, Maja; Schäfer, Stephan; Kappeler, Andreas; Lukes, Anton (2013). Myoepithelioma of the cerebellopontine angle: a previously not documented benign salivary gland-type neoplasm within the cranium. Clinical neuropathology, 32(3), pp. 176-182. Dustri-Verlag 10.5414/NP300596

Galli, Serena; Kappeler, Andreas; Vassella, Erik; Sahli, Rahel; Vajtai, Istvan (2012). Incongruous differential immunoexpression of the MGMT protein in a double adenoma of the pituitary with homogeneous nonmethylated MGMT promoter genotype. Clinical neuropathology, 31(2), pp. 99-103. München-Deisenhofen: Dustri-Verlag 10.5414/NP300443

Vajtai, Istvan; Vassella, Erik; Hewer, Ekkehard; Kappeler, Andreas; Reinert, Michael M (2012). Sarcomatous evolution of oligodendroglioma ("oligosarcoma"): confirmatory report of an uncommon pattern of malignant progression in oligodendroglial tumors. Pathology, research and practice, 208(12), pp. 750-5. München: Elsevier 10.1016/j.prp.2012.09.009

Bogni, Serge; Ortner, Maria-Anna; Vajtai, Istvan; Jost, Christian; Reinert, Michael; Dallemagne, Bernard; Frenz, Martin (2012). New laser soldering-based closures: a promising method in natural orifice transluminal endoscopic surgery. Gastrointestinal endoscopy, 76(1), pp. 151-8. New York, N.Y.: Elsevier 10.1016/j.gie.2012.03.006

Matter, Alexandra; Hewer, Ekkehard; Kappeler, Andreas; Fleischmann, Achim; Vajtai, Istvan (2012). Plexiform hybrid granular cell tumor/perineurioma: a novel variant of benign peripheral nerve sheath tumor with divergent differentiation. Pathology, research and practice, 208(5), pp. 310-4. München: Elsevier 10.1016/j.prp.2012.02.014

Vajtai, Istvan; Hewer, Ekkehard (2012). Atypical Histologic Features and Patterns of Malignant Evolution in Tanycytic Ependymoma. In: Hayat, M.A. (ed.) Tumors of the Central Nervous System 8 (pp. 321-329). Berlin-Heidelberg: Springer 10.1007/978-94-007-4213-0_32

Sahli, Rahel; Christ, Emanuel; Kuhlen, Dominique; Giger, Olivier; Vajtai, Istvan (2011). Sellar collision tumor involving pituitary gonadotroph adenoma and chondroma: a potential clinical diagnosis. Pituitary, 14(4), pp. 405-408. Norwell, Mass.: Springer US; http://www.springer-ny.com 10.1007/s11102-009-0199-6

Vajtai, Istvan; von Gunten, Michael; Fung, Christian; Brekenfeld, Caspar; Kappeler, Andreas; Reinert, Michael M (2011). Oncocytic ependymoma: a new morphological variant of high-grade ependymal neoplasm composed of mitochondrion-rich epithelioid cells. Pathology, research and practice, 207(1), pp. 49-54. München: Elsevier 10.1016/j.prp.2010.05.006

Vassella, Erik; Vajtai, Istvan; Bandi, Nora; Arnold, Marlene; Kocher, Verena; Mariani, Luigi (2011). Primer extension based quantitative polymerase chain reaction reveals consistent differences in the methylation status of the MGMT promoter in diffusely infiltrating gliomas (WHO grade II-IV) of adults. Journal of neuro-oncology, 104(1), pp. 293-303. Boston, Mass.: Springer 10.1007/s11060-010-0490-4

Babey, Muriel; Sahli, Rahel; Vajtai, Istvan; Andres, Robert H; Seiler, Rolf W (2011). Pituitary surgery for small prolactinomas as an alternative to treatment with dopamine agonists. Pituitary, 14(3), pp. 222-30. Norwell, Mass.: Springer US; http://www.springer-ny.com 10.1007/s11102-010-0283-y

Schucht, Philippe; Beck, Jürgen; Vajtai, Istvan; Raabe, Andreas (2011). Paradoxical fluorescence after administration of 5-aminolevulinic acid for resection of a cerebral melanoma metastasis. Acta neurochirurgica, 153(7), pp. 1497-9. Wien: Springer Vienna 10.1007/s00701-011-0991-8

Ackermann, Karin A; Z'graggen, Werner J; El-Koussy, Marwan; Caversaccio, Marco; Vajtai, Istvan; Colucci, Giuseppe (2011). Blindness in a patient with chronic lymphocytic leukemia. Transfusion, 86(9), pp. 783-4. Malden, Mass.: Wiley-Blackwell 10.1002/ajh.22042

Schlachter, Eva K; Widmer, Hans Ruedi; Bregy, Amadé; Lönnfors-Weitzel, Tarja; Vajtai, Istvan; Corazza, Nadia; Bernau, Vianney Jp; Weitzel, Thilo; Mordasini, Pasquale; Slotboom, Johannes; Herrmann, Gudrun; Bogni, Serge; Hofmann, Heinrich; Frenz, Martin; Reinert, Michael (2011). Metabolic pathway and distribution of superparamagnetic iron oxide nanoparticles: in vivo study. International journal of nanomedicine, 6, pp. 1793-1800. Auckland (NZ): DOVE Medical Press 10.2147/IJN.S23638

Rocha, Carla; Schäfer, Stephan; Kappeler, Andreas; Baumann, Marc; Surbek, Daniel; Vajtai, Istvan (2011). Meningocerebral angiodysplasia with metanephric induction failure: Broadening the spectrum of an emerging maldevelopmental syndrome. Pathology, research and practice, 207(7), pp. 456-61. München: Elsevier 10.1016/j.prp.2011.05.001

Vajtai, Istvan; Hewer, Ekkehard; Andres, Robert; Neuenschwander, Maja; Kappeler, Andreas; Gugger, Mathias (2011). Meningial perineurioma: a benign peripheral nerve sheath tumor in a previously unrecognized central nervous system location, mimicking meningioma. Pathology, research and practice, 207(9), pp. 592-6. München: Elsevier 10.1016/j.prp.2011.07.003

Vajtai, Istvan; Beck, Jürgen; Kappeler, Andreas; Hewer, Ekkehard (2011). Spindle cell oncocytoma of the pituitary gland with follicle-like component: organotypic differentiation to support its origin from folliculo-stellate cells. Acta neuropathologica, 122(2), pp. 253-8. Berlin: Springer-Verlag 10.1007/s00401-011-0835-x

Vajtai, Istvan; Stibal, Alexander; von Gunten, Michael; Kappeler, Andreas; Vassella, Erik; Frank, Stephan (2011). Glycogen-rich pleomorphic xanthoastrocytoma with clear-cell features: confirmatory report of a rare variant with implications for differential diagnosis. Pathology, research and practice, 207(4), pp. 256-61. München: Elsevier 10.1016/j.prp.2010.12.008

Schöni, Daniel S; Bogni, Serge; Bregy, Amadé; Wirth, Amina; Raabe, Andreas; Vajtai, Istvan; Pieles, Uwe; Reinert, Michael; Frenz, Martin (2011). Nanoshell assisted laser soldering of vascular tissue. Lasers in surgery and medicine, 43(10), pp. 975-83. Hoboken, N.J.: Wiley-Liss 10.1002/lsm.21140

Schär, Ralph T.; Vajtai, Istvan; Sahli, Rahel; Seiler, Rolf W. (2011). Manifestation of a sellar hemangioblastoma due to pituitary apoplexy: a case report. Journal of medical case reports, 5(496), p. 496. London: BioMed Central 10.1186/1752-1947-5-496

Bogni, Serge; Schöni, Daniel; Constantinescu, Mihai Adrian; Wirth, Amina; Vajtai, Istvan; Bregy, Amadé; Raabe, Andreas; Pieles, Uwe; Frenz, Martin; Reinert, Michael (2011). Tissue fusion, a new opportunity for sutureless bypass surgery. Acta neurochirurgica - supplementa, 112, pp. 45-53. Wien: Springer 10.1007/978-3-7091-0661-7_9

Vajtai, Istvan; Kuhlen, Dominique; Kappeler, Andreas; Mariani, Luigi; Zimmermann, Arthur; Paulus, Werner (2010). Rapid spontaneous malignant progression of supratentorial tanycytic ependymoma with sarcomatous features - "Ependymosarcoma". Pathology, research and practice, 206(7), pp. 493-8. München: Elsevier 10.1016/j.prp.2009.07.013

Schreiber-Facklam, Heide; Wagner, Anna M; Staehler, Kirsten; Surbek, Daniel; Kappeler, Andreas; Zimmermann, Arthur; Vajtai, Istvan (2009). "Exterritorial" lymphocytic hypophysitis within an ovarian teratoma during pregnancy: a possible sentinel lesion? Pathology, research and practice, 205(1), pp. 51-6. München: Elsevier 10.1016/j.prp.2008.08.005

Babey, Muriel; Aeberli, Daniel; Vajtai, Istvan; Sahli, Rahel (2009). Acute onset of polyarthralgia and high anti-cyclic citrullinated peptide antibodies in a case of idiopathic granulomatous hypophysitis. Journal of rheumatology, 36(1), pp. 204-7. Toronto, Ont.: Journal of Rheumatology Pub. Co. 10.3899/jrheum.080408

Marbacher, Serge; Lukes, Anton; Vajtai, Istvan; Ozdoba, Christoph (2009). Surgical approach for synovial cyst of the atlantoaxial joint: a case report and review of the literature. Spine, 34(15), E528-33. Hagerstown, Md.: Lippincott Williams & Wilkins

Wölner-Hanssen, Andrea B; Pozzi, Elena Ch Ferrazzini; Vajtai, Istvan; Bornstein, Michael M (2009). [Interradicular course of the inferior alveolar nerve at the mandibular right third molar and monostotic fibrous dysplasia affecting the mandibular left third molar in the same patient. A case report]. Schweizerische Monatsschrift für Zahnmedizin, 119(5), pp. 489-502. Bern: Schweizerische Zahnärzte-Gesellschaft

Llanes, Erasmo Gonzalo D V; Stibal, Alexander; Mühlethaler, Konrad; Vajtai, Istvan; Häusler, Rudolf; Caversaccio, Marco (2008). Echinococcosis presenting as an otogenic brain abscess: an unusual lesion of the middle ear cleft and temporal lobe. Auris nasus larynx, 35(1), pp. 115-20. Amsterdam: Elsevier 10.1016/j.anl.2007.07.007

Fathi, Ali-Reza; Novoa, Eva; El-Koussy, Marwan; Kappeler, Andreas; Mariani, Luigi; Vajtai, Istvan (2008). Astroblastoma with rhabdoid features and favorable long-term outcome: report of a case with a 12-year follow-up. Pathology, research and practice, 204(5), pp. 345-51. München: Elsevier 10.1016/j.prp.2007.12.003

Bregy, Amadé; Bogni, Serge; Bernau, Vianney J P; Vajtai, Istvan; Vollbach, Felix; Petri-Fink, Alke; Constantinescu, Mihai; Hofmann, Heinrich; Frenz, Martin; Reinert, Michael (2008). Solder doped polycaprolactone scaffold enables reproducible laser tissue soldering. Lasers in surgery and medicine, 40(10), pp. 716-25. Hoboken, N.J.: Wiley-Liss 10.1002/lsm.20710

Unal, Ekrem; Koksal, Yavuz; Vajtai, Istvan; Toy, Hatice; Kocaogullar, Yalcin; Paksoy, Yahya (2008). Astroblastoma in a child. Child's nervous system, 24(2), pp. 165-8. Heidelberg: Springer 10.1007/s00381-007-0424-4

Slotboom, Johannes; Schaer, Ralph; Ozdoba, Christoph; Reinert, Michael; Vajtai, Istvan; El-Kloussy, Marvan; Kiefer, Claus; Zbinden, Martin; Schroth, Gerhard (2008). A Novel Method for Analyzing DSCE-Images With an Application to Tumor Grading. Investigative radiology, 12(43), pp. 843-853. Philadelphia, Pa.: Lippincott Williams & Wilkins 10.1097/RLI.0b013e3181893605

Bregy, Amadé; Kohler, Andreas; Steitz, Benedikt; Petri-Fink, Alke; Bogni, Serge; Alfieri, Alex; Münker, Michael; Vajtai, Istvan; Frenz, Martin; Hofmann, Heinrich; Reinert, Michael (2008). Electromagnetic Tissue Fusion Using Superparamagnetic Iron Oxide Nanoparticles: First Experience with Rabbit Aorta. Open surgery journal, 2(1), pp. 3-9. Sharjah: Bentham Open 10.2174/1874300500802010003

Vajtai, Istvan; Arnold, Marlène; Kappeler, Andreas; Jeless, Olivia; Lukes, Anton; Mariani, Luigi; Paulus, Werner (2007). Rosette-forming glioneuronal tumor of the fourth ventricle: Report of two cases with a differential diagnostic overview. Pathology, research and practice, 203(8), pp. 613-9. München: Elsevier 10.1016/j.prp.2007.04.009

Vajtai, Istvan; Kappeler, Andreas; Sahli, Rahel (2007). Folliculo-stellate cells of "true dendritic" type are involved in the inflammatory microenvironment of tumor immunosurveillance of pituitary adenomas. Diagnostic pathology, 2, p. 20. London: BioMed Central 10.1186/1746-1596-2-20

Fathi, Ali-Reza; Vassella, Erik; Arnold, Marlene; Curschmann, Jürgen; Reinert, Michael; Vajtai, Istvan; Weis, Joachim; Deiana, Gianluca; Mariani, Luigi (2007). Objective response to radiation therapy and long-term survival of patients with WHO grade II astrocytic gliomas with known LOH 1p/19q status. Strahlentherapie und Onkologie, 183(9), pp. 517-22. Heidelberg: Urban & Vogel 10.1007/s00066-007-1673-6

Vajtai, Istvan; Kappeler, Andreas; Lukes, Anton; Arnold, Marlene; Lüthy, Annette Ridolfi; Leibundgut, Kurt (2006). Papillary glioneuronal tumor. Pathology, research and practice, 202(2), pp. 107-12. München: Elsevier 10.1016/j.prp.2005.11.008

Mariani, Luigi; Deiana, Gianluca; Vassella, Erik; Fathi, Ali-Reza; Murtin, Christine; Arnold, Marlène; Vajtai, Istvan; Weis, Joachim; Siegenthaler, Peter; Schobesberger, Martina; Reinert, Michael M (2006). Loss of heterozygosity 1p36 and 19q13 is a prognostic factor for overall survival in patients with diffuse WHO grade 2 gliomas treated without chemotherapy. Journal of clinical oncology, 24(29), pp. 4758-63. Alexandria, Va.: American Society of Clinical Oncology 10.1200/JCO.2006.05.9238

Z'Graggen, Werner J; Sturzenegger, Matthias; Mariani, Luigi; Keserue, Borbala; Kappeler, Andreas; Vajtai, Istvan (2006). Isolated Rosai-Dorfman disease of intracranial meninges. Pathology, research and practice, 202(3), pp. 165-70. München: Elsevier 10.1016/j.prp.2005.11.004

Vajtai, Istvan; Sahli, Rahel; Kappeler, Andreas; Christ, Emanuel R; Seiler, Rolf W (2006). Leiomyomatoid angiomatous neuroendocrine tumor (LANT) of the pituitary: a distinctive biphasic neoplasm with primitive secretory phenotype and smooth muscle-rich stroma. Acta neuropathologica, 111(3), pp. 278-83. Berlin: Springer-Verlag 10.1007/s00401-006-0051-2

Sahli, Rahel; Christ, Emanuel R; Seiler, Rolf; Kappeler, Andreas; Vajtai, Istvan (2006). Clinicopathologic correlations of silent corticotroph adenomas of the pituitary: report of four cases and literature review. Pathology, research and practice, 202(6), pp. 457-64. München: Elsevier 10.1016/j.prp.2006.01.007

Vajtai, Istvan; Sahli, Rahel; Kappeler, Andreas (2006). Spindle cell oncocytoma of the adenohypophysis: report of a case with a 16-year follow-up. Pathology, research and practice, 202(10), pp. 745-50. München: Elsevier 10.1016/j.prp.2006.05.008

Vajtai, Istvan; Sahli, Rahel; Kappeler, Andreas (2006). Pituitary prolactinoma with T cell rich inflammatory infiltrate: a possible example of antitumoral immune response to be differentiated from lymphocytic hypophysitis. Acta neuropathologica, 111(4), pp. 397-9. Berlin: Springer-Verlag 10.1007/s00401-006-0065-9

Vajtai, Istvan; Arnold, Marlene; Vassella, Erik (2005). Oligodendroglioma with neurocytic differentiation and characteristic loss of heterozygosity on chromosomes 1p and 19q. Acta neuropathologica, 110(5), pp. 520-522. Springer-Verlag 10.1007/s00401-005-1091-8