Igor M Poltinnikov1, Thomas E Merchant. 1. Kimmel Cancer Center of Jefferson Medical College, Thomas Jefferson University Hospital, Department of Radiation Oncology, Philadelphia, PA, USA.
Abstract
PURPOSE: To investigate the usefulness of cerebrospinal fluid (CSF) cytology in pediatric patients with ependymoma who relapsed after focal irradiation. METHODS: Eighty-eight patients with ependymoma received conformal radiotherapy (CRT) from July 1997 through January 2003 on an IRB approved prospective treatment protocol. CSF cytology results from evaluations performed prior to CRT and at the time of failure were reviewed for patients who progressed after CRT as documented by magnetic resonance imaging (MRI). RESULTS: Twenty-two patients had MRI documented evidence of progression after CRT. Ten patients developed distant failure without local failure, four had combined local and distant failure and eight had local failure without distant failure. The median time from the start of CRT to progression was 19 months (range: 6-73). CSF cytology at diagnosis was negative for the presence of malignant cells in all patients. At the time of progression, CSF cytology was performed in 16 of 22 patients including all 10 patients with distant failure without local recurrence. Malignant cells were not found in any of the evaluated CSF specimens including those with distant failure documented by MRI. CONCLUSIONS: CSF cytology does not add valuable information when evaluating patients with ependymoma who have evidence of distant failure documented by MRI. The usefulness of CSF cytology in the general follow-up evaluation of pediatric patients with ependymoma remains uncertain.
PURPOSE: To investigate the usefulness of cerebrospinal fluid (CSF) cytology in pediatric patients with ependymoma who relapsed after focal irradiation. METHODS: Eighty-eight patients with ependymoma received conformal radiotherapy (CRT) from July 1997 through January 2003 on an IRB approved prospective treatment protocol. CSF cytology results from evaluations performed prior to CRT and at the time of failure were reviewed for patients who progressed after CRT as documented by magnetic resonance imaging (MRI). RESULTS: Twenty-two patients had MRI documented evidence of progression after CRT. Ten patients developed distant failure without local failure, four had combined local and distant failure and eight had local failure without distant failure. The median time from the start of CRT to progression was 19 months (range: 6-73). CSF cytology at diagnosis was negative for the presence of malignant cells in all patients. At the time of progression, CSF cytology was performed in 16 of 22 patients including all 10 patients with distant failure without local recurrence. Malignant cells were not found in any of the evaluated CSF specimens including those with distant failure documented by MRI. CONCLUSIONS: CSF cytology does not add valuable information when evaluating patients with ependymoma who have evidence of distant failure documented by MRI. The usefulness of CSF cytology in the general follow-up evaluation of pediatric patients with ependymoma remains uncertain.
Authors: Jason Fangusaro; Clark Van Den Berghe; Tadanori Tomita; Veena Rajaram; Dolly Aguilera; Deli Wang; Stewart Goldman Journal: J Neurooncol Date: 2010-11-01 Impact factor: 4.130
Authors: Martin Benesch; Martin Mynarek; Hendrik Witt; Monika Warmuth-Metz; Torsten Pietsch; Brigitte Bison; Stefan M Pfister; Kristian W Pajtler; Marcel Kool; Ulrich Schüller; Klaus Pietschmann; Björn-Ole Juhnke; Stephan Tippelt; Gudrun Fleischhack; Irene Schmid; Christof M Kramm; Peter Vorwerk; Andreas Beilken; Carl Friedrich Classen; Pablo Hernáiz Driever; Gabriele Kropshofer; Thomas Imschweiler; Andreas Lemmer; Rolf-Dieter Kortmann; Stefan Rutkowski; Katja von Hoff Journal: Oncologist Date: 2019-03-08