Abstract
Background: The clinical applicability of the Revised European-american Lymphoma (R.E.A.L) Classification has been demonstrated in several retrospective studies. The present, ongoing study was initiated to evaluate the clinical and pathological utility of the R.E.A.L. Classification compared with the Working Formulation (WF) in a prospective fashion, in an unselected patient population treated at a single institution. Patients and methods: Prospective data were collected on 596 biopsics from 557 patients referred with an initial diagnosis of lymphoma. After initial histologic review, 465 biopsies from 441 patients were confirmed as non-Hodgkin's lyphoma (NHL), 412 of which could be classified in R.E.A.L. and WF. Results: According to WF criteria, 25% were low grade, 58% intermediate grade and 2% high grade. 14% could not be allocated to a WF subtype. According to R.E.A.L., 46% were diffuse large B cell, 19% follicle centre lymphoma, 6% marginal zone, 6% small lymphocytic, 4% mantle cell, and 3% T-cell anaplastic large cell. For those with B-cell NHL, 7% were unclassifiable in WF compared with 1% in R.E.A.L. Corresponding figures for T-cell NHL were 68% and 3%, respectively. Conclusions: Preliminary results confirm the clinical utility of the R.E.A.L. Classification in a single institution setting, demonstrating that cases were more readily sub-typed in R.E.A.L. compared with WF. Frequencies are comparable with I.L.S.G. data. Further follow up with large patient numbers is on-going to analyse survival data with reference to clinical prognostic factors.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1121-1124 |
| Number of pages | 4 |
| Journal | Annals of Oncology |
| Volume | 10 |
| Issue number | 9 |
| DOIs | |
| State | Published - Oct 25 1999 |
| Externally published | Yes |
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Keywords
- Classification
- Lymphom
- Non-hodgkin's
- R.E.A.L
ASJC Scopus subject areas
- Hematology
- Oncology
Cite this
The clinical utility of the Revised European-American Lymphoma (R.E.A.L.) Classification : Preliminary results of a prospective study in patients with non-Hodgkin's lymphoma from a single centre. / Sweetenham, J. W.; Smartt, P. F.M.; Wilkins, B. S.; Pellatt, J. C.; Smith, J. L.; Ramsay, A.; Whitehouse, J. M.A.
In: Annals of Oncology, Vol. 10, No. 9, 25.10.1999, p. 1121-1124.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The clinical utility of the Revised European-American Lymphoma (R.E.A.L.) Classification
T2 - Preliminary results of a prospective study in patients with non-Hodgkin's lymphoma from a single centre
AU - Sweetenham, J. W.
AU - Smartt, P. F.M.
AU - Wilkins, B. S.
AU - Pellatt, J. C.
AU - Smith, J. L.
AU - Ramsay, A.
AU - Whitehouse, J. M.A.
PY - 1999/10/25
Y1 - 1999/10/25
N2 - Background: The clinical applicability of the Revised European-american Lymphoma (R.E.A.L) Classification has been demonstrated in several retrospective studies. The present, ongoing study was initiated to evaluate the clinical and pathological utility of the R.E.A.L. Classification compared with the Working Formulation (WF) in a prospective fashion, in an unselected patient population treated at a single institution. Patients and methods: Prospective data were collected on 596 biopsics from 557 patients referred with an initial diagnosis of lymphoma. After initial histologic review, 465 biopsies from 441 patients were confirmed as non-Hodgkin's lyphoma (NHL), 412 of which could be classified in R.E.A.L. and WF. Results: According to WF criteria, 25% were low grade, 58% intermediate grade and 2% high grade. 14% could not be allocated to a WF subtype. According to R.E.A.L., 46% were diffuse large B cell, 19% follicle centre lymphoma, 6% marginal zone, 6% small lymphocytic, 4% mantle cell, and 3% T-cell anaplastic large cell. For those with B-cell NHL, 7% were unclassifiable in WF compared with 1% in R.E.A.L. Corresponding figures for T-cell NHL were 68% and 3%, respectively. Conclusions: Preliminary results confirm the clinical utility of the R.E.A.L. Classification in a single institution setting, demonstrating that cases were more readily sub-typed in R.E.A.L. compared with WF. Frequencies are comparable with I.L.S.G. data. Further follow up with large patient numbers is on-going to analyse survival data with reference to clinical prognostic factors.
AB - Background: The clinical applicability of the Revised European-american Lymphoma (R.E.A.L) Classification has been demonstrated in several retrospective studies. The present, ongoing study was initiated to evaluate the clinical and pathological utility of the R.E.A.L. Classification compared with the Working Formulation (WF) in a prospective fashion, in an unselected patient population treated at a single institution. Patients and methods: Prospective data were collected on 596 biopsics from 557 patients referred with an initial diagnosis of lymphoma. After initial histologic review, 465 biopsies from 441 patients were confirmed as non-Hodgkin's lyphoma (NHL), 412 of which could be classified in R.E.A.L. and WF. Results: According to WF criteria, 25% were low grade, 58% intermediate grade and 2% high grade. 14% could not be allocated to a WF subtype. According to R.E.A.L., 46% were diffuse large B cell, 19% follicle centre lymphoma, 6% marginal zone, 6% small lymphocytic, 4% mantle cell, and 3% T-cell anaplastic large cell. For those with B-cell NHL, 7% were unclassifiable in WF compared with 1% in R.E.A.L. Corresponding figures for T-cell NHL were 68% and 3%, respectively. Conclusions: Preliminary results confirm the clinical utility of the R.E.A.L. Classification in a single institution setting, demonstrating that cases were more readily sub-typed in R.E.A.L. compared with WF. Frequencies are comparable with I.L.S.G. data. Further follow up with large patient numbers is on-going to analyse survival data with reference to clinical prognostic factors.
KW - Classification
KW - Lymphom
KW - Non-hodgkin's
KW - R.E.A.L
UR - http://www.scopus.com/inward/record.url?scp=0032820064&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032820064&partnerID=8YFLogxK
U2 - 10.1023/A:1008354517385
DO - 10.1023/A:1008354517385
M3 - Article
C2 - 10572614
AN - SCOPUS:0032820064
VL - 10
SP - 1121
EP - 1124
JO - Annals of Oncology
JF - Annals of Oncology
SN - 0923-7534
IS - 9
ER -