D
Dirk Janssen
Researcher at University of Kiel
Publications - 11
Citations - 858
Dirk Janssen is an academic researcher from University of Kiel. The author has contributed to research in topics: Mantle cell lymphoma & Juvenile xanthogranuloma. The author has an hindex of 9, co-authored 11 publications receiving 797 citations.
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Journal ArticleDOI
Histopathology, cell proliferation indices and clinical outcome in 304 patients with mantle cell lymphoma (MCL): a clinicopathological study from the European MCL Network.
Markus Tiemann,Carsten Schrader,Wolfram Klapper,Martin Dreyling,Elias Campo,Andrew J. Norton,Françoise Berger,Philip M. Kluin,German Ott,Stephano Pileri,Ennio Pedrinis,Alfred C. Feller,Hartmut Merz,Dirk Janssen,Martin L. Hansmann,Han van Krieken,Peter Möller,Harald Stein,Michael Unterhalt,Wolfgang Hiddemann,Reza Parwaresch +20 more
TL;DR: Based on this large clinicopathological study of prospective clinical trials, multivariate analysis confirmed the central prognostic role of cell proliferation and its superiority to all other histomorphological and clinical criteria.
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Juvenile xanthogranuloma in childhood and adolescence: a clinicopathologic study of 129 patients from the kiel pediatric tumor registry.
Dirk Janssen,Dieter Harms +1 more
TL;DR: Clinical and follow-up data showed a generally favorable prognosis with a low relapse rate (7.0%) and even complete involution after incomplete resection of juvenile xanthogranuloma.
Journal ArticleDOI
Clonal nature of sclerosing polycystic adenosis of salivary glands demonstrated by using the polymorphism of the human androgen receptor (HUMARA) locus as a marker.
Alena Skálová,Douglas R. Gnepp,Roderick H.W. Simpson,Jean E. Lewis,Dirk Janssen,Radek Sima,Tomas Vanecek,Silvana Di Palma,Michal Michal +8 more
TL;DR: The findings in the present study are further supporting evidence that SPA is a neoplasm, and not just a reactive process.
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AIDS-related B-cell lymphoma (ARL): correlation of prognosis with differentiation profiles assessed by immunophenotyping.
Christian Hoffmann,Markus Tiemann,Carsten Schrader,Dirk Janssen,Eva Wolf,Mathias Vierbuchen,Reza Parwaresch,Karen Ernestus,Andreas Plettenberg,Albrecht Stoehr,Gerd Fätkenheuer,Christoph Wyen,Mark Oette,Heinz-August Horst +13 more
TL;DR: Lack of CD20 or CD10 expression and a post-germinal center signature are associated with a worse prognosis in ARL.
Journal ArticleDOI
Tumor Sclerosis but Not Cell Proliferation or Malignancy Grade Is a Prognostic Marker in Advanced-Stage Follicular Lymphoma: The German Low Grade Lymphoma Study Group
Wolfram Klapper,Eva Hoster,Lars Rölver,Carsten Schrader,Dirk Janssen,Markus Tiemann,Heinz-Wolfram Bernd,Olaf Determann,Martin-Leo Hansmann,Peter Møller,Alfred C. Feller,Harald Stein,Hans-Heinrich Wacker,Martin Dreyling,Michael Unterhalt,Wolfgang Hiddemann,German Ott +16 more
TL;DR: The presence of sclerosis within the lymphoma is a marker of poor overall survival that is independent of the FLIPI, and the quantification of macrophage or absolute T-cell content, grading, and proliferation are of no help in predicting the outcome of FL.