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4. Endoskopie für Fortgeschrittene

Author

Hesseling, M., De Wilde, R. L., Possover, M., Schneider, A., Messroghli, H., Neis, K. J., Brandner, P., Gordz, K., Mettler, L., Ostertag, H., Jonat, W., Berg, Dietrich, editor, Diedrich, Klaus, editor, and Rauskolb, Rüdiger, editor

Published
2000
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6. Intratestikuläre Metastasierung eines Nierenzellkarzinoms

Author

Schmorl, P., Ostertag, H., and Conrad, S.

Abstract

Zusammenfassung: Wir berichten über einen 66 Jahre alten Mann mit Zustand nach Nephrektomie rechts aufgrund eines Nierenzellkarzinoms. Ein Jahr nach Diagnosestellung trat eine ossäre Metastase im rechten Femur auf, welche reseziert wurde. Nachfolgende Untersuchungen inklusive PET-CT zeigten kein Rezidiv. 3,5 Jahre nach Erstdiagnose trat ein testikulärer Tumor rechts auf, sodass eine Ablatio testis durchgeführt wurde. Die Histologie zeigte eine testikuläre Metastase des Nierenkarzinoms. Dieser Fall zeigt die teilweise ungewöhnlichen Metastasierungswege des Nierenzellkarzinoms.

Published
2024
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12. Abstracts der 3. Gemeinsamen Brachytherapiekonferenz SASRO/DEGRO/OEGRO

Author

Ott, O. J., Strnad, V., Pötter, R., Hammer, J., Hildebrandt, G., Resch, A., Kovács, G., Beckmann, M. W., Sauer, R., Niehoff, P., Polgar, C., Ostertag, H., Major, T., Eidtmann, H., Jonat, W., Kimmig, B., Roddiger, S. J., Kolotas, C., Kuner, R. P., Martin, T., Kurek, R., Baltas, D., Rogge, B., Kautschur, H., Hoffmann, G., Pollow, B., Kontova, M., Zamboglou, N., Ott, O., Lotter, M., Gallino, A., Mahler, F., Niewald, M., Jafari, F., Hennen, B., Wisser, L., Fleckenstein, J., Rübe, Ch., Böhm, M., Micke, O., Wagner, W., Schäfer, U., Willich, N., Greiner, R. H., Pallas, A., Pajic, B., Collen, T., Meurer, N., Töpfer, M., Ries, G., Leutloff, U., Frei, S., Warszawski, A., Baumann, R., Möller, T., Niedermeyer, J., Karstens, J. H., Gripp, S., Muskalla, K., Pulte, T., Ohmann, C., Röddiger, S., Dannenberg, T., Tunn, U. W., Dimopoulos, J., Schard, G., Kirisits, C., Lang, S., Goldner, G., Wachter, S., Wachter-Gerstner, N., Helbich, T., Weise, C., Bendel, M., Kocher, M., Müller, R.-P., Engelmann, U., Aebersold, D. M., Isaak, B., Vetterli, D., Kemmerling, L., Thalmann, G., Behrensmeier, F., Mini, R., Baier, K., Wulf, J., Nürnberg, N., Egberts, J., Galalae, R., Maurer, U., Maurer, G., Lang, K., Zumbé, J., Block, T., Czempiel, H., Machtens, S., Ponholzer, A., Riedl, A., Oismüller, R., Somay, C., Hawliczek, R., Maier, U., Madersbacher, S., Hoinkis, C., Winkler, C., Lehmann, D., Hakenberg, O., Herrmann, T., Messer, P. M., Gottfried, H.-W., Schneider, E., Röttinger, E. M., Haverkamp, U., Prümer, B. A., Krause, K., Tschuschke, C., Blumberg, J., Benkel, P., Fischedick, A. R., Geiger, M. H., Hoffmann, T. C., Reible, M., Meyer-Venter, R., Plümpe, A., Bund, J., Dreikorn, K., Staar, S., Horn, G., Zimmermann, J. S., Pfeiffer, D., Tauber, R., Bruns, T., Osieka, R., Blumstein, N. M., Schmidt, W., Büchler, F., Prikler, L., Seelentag, W., Koch, K., Haker, H., König, F., Oesterwitz, H., Schütz, R., Stahl, H., Ullmann, A., Sztankay, A., Rachbauer, F., Kreczy, A., Sununu, T., Bach, C., Nogler, M., Krismer, M., Eichberger, P., Schiestl, B., Lukas, P., Wolf, A., Hänsgen, G., Dunst, J., Utzig, D., Knocke-Abulesz, T. H., Baldass, M., Kucera, H., Weitmann, H. D., Waldhäusl, C., Nechvile, E., Knocke, T.-H., Georg, D., Krause, U., Fröhlich, D., Glatzel, M., Büntzel, J., Schröder, D., Küttner, K., Pfreundnerx, L., Willner, J., Bratengeier, K., Schwager, K., Hoppe, F., Schwab, F., Sauer, O., Flentje, M., Tselis, N., Schneider, O., Stückle, C. A., Adamietz, I. A., Weitman, H. D., Tepel, J., Schmid, A., Kohr, P., Kremer, B., Moh’d, Suleiman, Frey, J. G., Tschopp, J. M., Bieri, S., Jeszensky, D., Liebsch, N., Seelentag, W. W., Karle, H., Jacob-Heutmann, D., Born, C., Mohr, W., Kutzner, J., Thelen, M., Blochberger, P., Wächtler, M., Kaulich, T. W., Zurheide, J., Haug, T., Nüsslin, F., Bamberg, M., Curschmann, J., Kranzbühler, H., Greiner, R., Cossmann, P. H., Caversaccio, M., Pappas, I., and Nolte, L. P.

Published
2004
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16. The prognostic value of progesterone receptor status in meningiomas

Author

Roser, F., Nakamura, M., Bellinzona, M., Rosahl, S.K., Ostertag, H., and Samii, M.

Subjects
Meningioma -- Research, Meningioma -- Prognosis, Meningioma -- Care and treatment, Diseases -- Relapse, Progesterone -- Receptors, Progesterone -- Research, Health
Published
2004

21. Post-injection attenuation correction for PET scanners without measured random correction

Author

Zaers, J., Doll, J., Ostertag, H., Bellemann, M.E., and Brix, G.

Subjects
PET imaging -- Analysis, Attenuation -- Analysis, Business, Electronics, Electronics and electrical industries
Abstract

The most accurate attenuation correction in positron emission tomography (PET) is achieved by measuring a transmission scan with a rotating rod source in combination with a blank scan using the rod windowing technique. In clinical routine, however, transmission scans often have to be acquired after the administration of the radiotracer. The raw data recorded this way are biased by coincidences generated by the additional activity in the scanner's field of view. In a first approximation, these additional true coincidences can be removed by subtracting a decay-corrected emission scan from the post-injection transmission data. But there are also additional 'mixed' random events generated by the single photon fluxes from the patient activity and the rod source together. In this work, the correction for post-injection transmission data was extended to take into account the effect of the rod windowing and the 'mixed' randoms. A couple of experiments were performed to determine the reduced scanner sensitivity for the additional true and random events with active rod windowing. The resulting correction, which can be used for most tomographs without a measured random correction, was validated in a study with the EEC whole-body phantom.

Published
1998

31. Nuklearmedizinische Diagnostik

Author

Georgi, P., Ostertag, H., Buchborn, E., editor, Austgen, M., editor, Beckenkamp, H.-W., editor, Brandt, H.-J., editor, Dold, U., editor, Dürschmied, H., editor, Dundalek, E., editor, Felix, R., editor, Georgi, P., editor, Herold, H.-J., editor, Hilgard, P., editor, Jacob, W., editor, Klein, H. O., editor, Konietzko, N., editor, Loddenkemper, R., editor, Maaßen, W., editor, Matsui, E., editor, Matthiessen, W., editor, Meents, H., editor, Müller, K.-M., editor, Ostertag, H., editor, Schlimmer, P., editor, Schmähl, D., editor, Schober, R., editor, Wegener, O. H., editor, Wolfart, W., editor, Zeller, W. J., editor, and Trendelenburg, Friedrich, editor

Published
1985
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32. Pathologische proximale Humerusfraktur bei benignem fibrösen Histiozytom. Fallbericht einer seltenen Entität

Author

Colcuc, C, Schwenninger, C, Komadinic, A, Freyschmidt, J, Ostertag, H, and Vordemvenne, T

Subjects
Knochentumor, benignes fibröses Histiozytom, ddc: 610, pathologische Fraktur, 610 Medical sciences, Medicine
Abstract

Fragestellung: Das benigne fibröse Histiozytom (BFH) ist ein Tumor der selten im Skelett und insbesondere an der oberen Extremität diagnostiziert wird. Lediglich 1% aller operativ behandelten benignen Knochentumoren entfallen auf das BFH [ref:1]. Ziel dieses Case Reportes ist[zum vollständigen Text gelangen Sie über die oben angegebene URL], Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)

Published
2017
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41. Neurofibromatose versus Schwannomatose*

Author

Schröder S, Mautner Vf, Kluwe L, Stefan M. Pulst, and Ostertag H

Subjects
Adult, Male, congenital, hereditary, and neonatal diseases and abnormalities, Pathology, medicine.medical_specialty, Neurofibromatoses, Physical examination, Polymerase Chain Reaction, Diagnosis, Differential, otorhinolaryngologic diseases, medicine, Humans, Lymphocytes, RNA, Messenger, Family history, Neurofibromatosis, Schwannomatosis, Pathological, Aged, biology, medicine.diagnostic_test, Brain Neoplasms, business.industry, Histology, Middle Aged, medicine.disease, Immunohistochemistry, Neurofibromin 1, Psychiatry and Mental health, Neurology, Mutation, biology.protein, Neurology (clinical), business, Neurilemmoma
Abstract

Neurofibromatosis Type 1 and 2 (NF1 und NF2) are different forms of neurofibromatosis, well defined both clinically and genetically. In absence of typical clinical features of NF1 (café-au-lait-spots, cutaneous neurofibromas, Lisch-nodules) or NF2 (vestibular schwanoma) clinical classification is often not possible. Neurofibromas are more common in NF1 and schwannomas are typical for NF2, but pathological histology does not provide sufficient evidence for diagnosis. We describe 14 patients who presented with the clinical picture of multiple spinal tumours. Detailed family history, exact clinical examination including an ophthalmological examination led to the diagnosis of NF2 in four cases. Mutation analysis confirmed the diagnosis of NF2 in one case by identification of a 163 base pair deletion in the NF2 transcript. To investigate the expression of schwannomin and neurofibromin we stained tumour paraffin sections of six patients with antibodies against peptides of the NF1 and the NF2 protein. Based on preserved immunoreactivities we were able to exclude diagnosis of NF1 in three and NF2 in two cases. In four patients the clinical symptoms could confirm the diagnosis of schwannomatosis. Combining the results of clinical, neurogenetical and immunohistochemical examinations we could diagnose NF1 or NF2 in ten patients in total. Immunoreactivity led to the suggestion of NF2 in two patients; the other two patients whose tumours were not stained so far, could as yet not be classified for NF.

Published
1998
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43. Die aktivierende <italic>GNAS</italic>-Mutation.

Author

Ostertag, H. and Glombitza, S.

Abstract

Copyright of Der Pathologe is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2018
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49. Neuromuscular Choristoma

Author

Mitchell A, Bw, Scheithauer, Ostertag H, Sepehrnia A, and aydin sav

Subjects
Muscles, Axilla, Humans, Infant, Female, Neoplasms, Second Primary, Fibroma, General Medicine, Choristoma, Neoplasm Recurrence, Local, Nerve Tissue, Thoracic Neoplasms, Tomography, X-Ray Computed
Abstract

Neuromuscular choristomas are rare, with only 13 cases having been previously reported. They usually arise in association with large nerves, and most often occur in the first decade of life. A few have been congenital. Although resection is typically curative, in two instances partial resection alone appears to have been followed by spontaneous regression. The authors report an unusual example of an otherwise classic neuromuscular choristoma where the lesion appeared to grow after incomplete initial resection. Re-excision disclosed a fibromatosis unassociated with choristoma. Despite its wide excision, a recurrence of the fibromatosis required a forequarter amputation. Theories of histogenesis and the clinicopathologic features of the neuromuscular choristomas reported to date are reviewed. The term "benign Triton tumor," although incorrectly applied to this lesion, should be reserved for benign, true nerve sheath neoplasms exhibiting myogenic differentiation.

Published
1995
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