Radioimmunotherapy and secondary leukemia: a case report.
This study describes a patient with a relapsed, diffuse, large B cell lymphoma (DLBCL) treated with radioimmunotherapy (RIT) with yttrium-90 ((90)Y)-ibritumomab tiuxetan (Zevalin) who 5 months later developed acute myeloid leukemia (AML) with inversion of chromosome 16. Our data indicate that molecular biological techniques should be used in selected cases to integrate data obtained with standard cytogenetics: using RT-PCR we showed that inversion of chromosome 16 was already present before RIT, in striking contrast to the normal karyotype found with conventional cytogenetics. This approach will allow investigators to avoid misleading data and provide support for conclusions regarding the side effects of treatment.
Magni
Michele
M
Di Nicola
Massimo
M
Testi
Adele
A
Cabras
Antonello
A
Devizzi
Liliana
L
Guidetti
Anna
A
Matteucci
Paola
P
Viviani
Simonetta
S
Bonfante
Valeria
V
Carniti
Cristiana
C
Ricca
Irene
I
Carbone
Antonino
A
Carlo-Stella
Carmelo
C
Gianni
Alessandro M
AM
D007446:Chromosome Inversion; D002885:Chromosomes, Human, Pair 16; D006801:Humans; D007621:Karyotyping; D015470:Leukemia, Myeloid, Acute / Q000209:etiology* / Q000235:genetics; D016403:Lymphoma, Large B-Cell, Diffuse / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009154:Mutation; D016499:Radioimmunotherapy / Q000009:adverse effects*; D020133:Reverse Transcriptase Polymerase Chain Reaction