home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9602.ZIP
/
M9620150.TXT
< prev
next >
Wrap
Text File
|
1996-02-26
|
3KB
|
48 lines
Document 0150
DOCN M9620150
TI [Incidence and characterization of large-cell anaplastic lymphoma]
DT 9602
AU Chirife AM; Schmitz L; Gimenez L; Marino L; de Maria H; Departamento de
Inmunopatologia, Instituto de Oncologia Angel; H. Roffo, Universidad de
Buenos Aires.
SO Sangre (Barc). 1995 Aug;40(4):275-9. Unique Identifier : AIDSLINE
MED/96063458
AB PURPOSE: Large cell anaplastic lymphoma (LCAL) is a new entity among
large cell lymphoma. Diagnosis is based upon morphology and on
positivity to Ki1 antigen. The objectives of this study were: 1) to
determine the incidence of LCAL in the patient population seen at the
Instituto Roffo between 1981 and 1993; 2) to study the immunological
phenotype; 3) to study the association with Epstein-Barr virus and HIV;
4) To study the expression of oncogen bcl-2 and 5) to evaluate tumoral
growth factor. MATERIAL AND METHODS: The study was done on 1030 biopsies
of nodal and extranodal lymphoproliferative diseases, with Hodgkin and
non-Hodgkin lymphoma. Of the 1030 consecutive cases, 67 were selected.
They revealed pleomorphic cells with sinusoidal disposition. Biotin and
avidin peroxidase techniques were used to identify the following
antigens: CD30(Ki 1), CD45RO (UCHL1), CD20(L26), CD45(CL), Epstein Barr
virus (VEB), human immunodeficiency virus (HIV), CD15, CD68, PCNA, bcl-2
oncogen, vimentin, membrane epithelial antigen (EMA). Of these cases,
only 10 revealed strong positive reaction to CD 30 (Ki1), thus they were
considered to fulfill criteria to be classified as LCAL. RESULTS: 1.
Incidence of LCAL in the lymphoma population under study was 1%. 2.
Phenotype was B in 3 cases, T in 3, and macrophage in 1.3. There was 1
case of positive EBV and 3 positive HIV. 4. Eight of 10 LCAL cases were
positive for bcl-2 protein. 5. Tumoral growth factor was 57%. Also, it
was noted that most cases were secondary to Hodgkin lymphoma, and a few
secondary to polymorphic immunoblastic lymphoma, with negative reaction
to CD15 and EMA and positive for Vimentin. CONCLUSIONS: 1. Incidence of
LCAL amongst patients with lymphoma is very low. 2. Immunological
phenotype is varied. 3. There was no significant association with EBV or
HIV. 4. Oncogen bcl-2 was demonstrated in most cases. 5. There was a
high percentage of cells in proliferation.
DE Adolescence Adult Aged Aged, 80 and over Antigens, CD/BIOSYNTHESIS
Cell Division Child English Abstract Female G-Proteins/BIOSYNTHESIS
Herpesvirus 4, Human/ISOLATION & PURIF Human HIV/ISOLATION & PURIF
Immunophenotyping Incidence *Lymphoma, Large-Cell,
Ki-1/EPIDEMIOLOGY/GENETICS/IMMUNOLOGY/ PATHOLOGY/VIROLOGY Male Middle
Age Proto-Oncogene Proteins/BIOSYNTHESIS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).