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  • 1
    Electronic Resource
    Electronic Resource
    Tumour regression in non-small-cell lung cancer following neoadjuvant therapy. Histological assessment (1997)
    Springer
    Journal of cancer research and clinical oncology 123 (1997), S. 469-477 
    Details
    ISSN: 1432-1335
    Keywords: Key words Non-small-cell lung cancer ; Neoadjuvant therapy ; Regression grading ; Therapy-induced tumour regression ; Spontaneous tumour regression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In the scope of a prospective multi-centre study after neoadjuvant combined chemotherapy (carboplatin, ifosfamide, etoposide, vindesine) and radiotherapy (45 Gy) 40 resection specimens of locally advanced non-small-cell lung cancer were analysed in order to establish reproducible pathological/anatomical results of tumour regression. Resection specimens of 28 squamous cell carcinomas and 12 adenocarcinomas were investigated using serial sections of the primary lesion. The mean age of the patients was 57 years. The results were compared to spontaneous regressive changes in a control group of 50 untreated non-small-cell lung cancers. Marked scarry fibrosis in the region of the former primary tumour, concentric foci of fresh tumour necroses and surrounding foam cell clusters with transition into vascular granulation tissue could be established as characteristic features of therapy-induced tumour regression, whereas untreated carcinomas revealed necroses with adjoining vital tumour tissue. Using a three-step regression system, 3 tumours could be classified as grade I (no or only slight tumour regression), 10 tumours as grade IIA (marked but incomplete tumour regression, more than 10% vital tumour tissue), 20 tumours as grade IIB (less than 10% vital tumour tissue) and 7 tumours as grade III (complete tumour regression without vital tumour tissue). After a median follow-up period of 32.3 months in patients with grade IIB or III tumour regression (“responders”) the median survival time of 27.9 months was found to be significantly longer than in patients with grade I or IIA tumour regression (“non-responders”) with a median survival period of 13.7 months (log-rank test, P=0.020). The resection specimens analysed, which were obtained 7 weeks (on average) after the end of radiochemotherapy, did not show specific changes due to preoperative therapy, but quite characteristic histological alterations in the former tumour area were registered, which had been induced by combined neoadjuvant radiation and chemotherapy. The grade of therapy-induced tumour regression could be shown to be a significant prognostic factor in non-small-cell lung cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004320050090
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Tumour regression in non-small-cell lung cancer following neoadjuvant therapy. Histological assessment (1997)
    Springer
    Journal of cancer research and clinical oncology 123 (1997), S. 469-477 
    Details
    ISSN: 1432-1335
    Keywords: Non-small-cell lung cancer ; Neoadjuvant therapy ; Regression grading ; Therapy-induced tumour regression ; Spontaneous tumour regression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In the scope of a prospective multi-centre study after neoadjuvant combined chemotherapy (carboplatin, ifosfamide, etoposide, vindesine) and radiotherapy (45 Gy) 40 resection specimens of locally advanced non-small-cell lung cancer were analysed in order to establish reproducible pathological/anatomical results of tumour regression. Resection specimens of 28 squamous cell carcinomas and 12 adenocarcinomas were investigated using serial sections of the primary lesion. The mean age of the patients was 57 years. The results were compared to spontaneous regressive changes in a control group of 50 untreated non-small-cell lung cancers. Marked scarry fibrosis in the region of the former primary tumour, concentric foci of fresh tumour necroses and surrounding foam cell clusters with transition into vascular granulation tissue could be established as characteristic features of therapy-induced tumour regression, whereas untreated carcinomas revealed necroses with adjoining vital tumour tissue. Using a threestep regression system, 3 tumours could be classified as grade I (no or only slight tumour regression), 10 tumours as grade IIA (marked but incomplete tumour regression, more than 10% vital tumour tissue), 20 tumours as grade IIB (less than 10% vital tumour tissue) and 7 tumours as grade III (complete tumour regression without vital tumour tissue). After a median follow-up period of 32.3 months in patients with grade IIB or III tumour regression (“responders”) the median survival time of 27.9 months was found to be significantly longer than in patients with grade I or IIA tumour regression (“non-responders”) with a median survival period of 13.7 months (log-rank test,P=0.020). The resection specimens analysed, which were obtained 7 weeks (on average) after the end of radiochemotherapy, did not show specific changes due to preoperative therapy, but quite characteristic histological alterations in the former tumour area were registered, which had been induced by combined neoadjuvant radiation and chemotherapy. The grade of therapy-induced tumour regression could be shown to be a significant prognostic factor in non-small-cell lung cancer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01192200
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Kleinzelliges Bronchialkarzinom nach Chemotherapie Morphologische Befunde (1995)
    Springer
    Der Pathologe 16 (1995), S. 217-222 
    Details
    ISSN: 1432-1963
    Keywords: Schlüsselwörter Kleinzelliges Bronchialkarzinom ; Neoadjuvante Chemotherapie ; Therapieinduzierte Tumorregression ; Spontanregression ; Regressionsgrading ; Key words Small cell lung cancer ; Neoadjuvant chemotherapy ; Therapy induced tumor regression ; Spontaneous tumor regression ; Regression grading
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Resection specimens of 14 patients with small cell bronchial carcinoma after neoadjuvant chemotherapy were processed histologically and graded according to a three-step regression grading system: grade I, no or only slight tumor regression; grade II, incomplete tumor regression; grade III, complete tumor regression without vital tumor tissue. In five patients with either no vital tumor tissue or only small tumor remnants in the resection samples, a typical sequence of central fresh tumor necrosis, foam cell rim, vascular granulation tissue and peripheral scar formation was seen. This morphological finding may be interpreted as a characteristic, but unspecific parameter of good response to preoperative chemotherapy. The presence of vital tumor rims surrounding the capillary bed with intermingled necrotic foci, however, argues in favor of spontaneous tumor regression, which is commonly observed in small cell lung cancer.
    Notes: Zusammenfassung Resektionspräparate von 14 Patienten mit kleinzelligen Bronchialkarzinomen nach neoadjuvanter Chemotherapie wurden histologisch aufgearbeitet und nach einem 3 stufigen Regressionsgrading klassifiziert. Regressionsgrad I: keine oder nur geringe Tumorregression, Regressionsgrad II: unvollständige Tumorregression und Regressionsgrad III: vollständige Tumorregression ohne Nachweis vitalen Tumorgewebes. Bei 5 Patienten, deren Resektate kein vitales Tumorgewebe oder nur kleine Tumorreste aufwiesen, konnte eine typische Abfolge von zentraler frischer Tumornekrose, Schaumzellsaum, gefäßreichem Granulationsgewebe und peripherer Vernarbung nachgewiesen werden. Dieser Befund kann als charakteristischer, aber letztlich unspezifischer Ausdruck eines guten Ansprechens auf die präoperative Chemotherapie angesehen werden. Dagegen spricht der Nachweis von kapillarbezogenen vitalen Tumorsäumen mit dazwischen liegenden, schmalen Nekrosen für die beim kleinzelligen Bronchialkarzinom häufig auftretende spontane Tumorregression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002920050094
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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