Table 2. Distribution of primary cytogenetic categories.

Molecular cytogenetic classification	All patients in whom cytogenetic studies were done (n=28)	Patients with informative cytogenetic results (n=24)
	No. of patients (%)	No. of patients (%)
Trisomiesa	19 (68)	18 (75)
t(11;14)(q13;q32)	2 (7)	2 (8)
t(4;14)(p16;q32)	0 (0)	0 (0)
MAF translocations [t(14;16)(q32;q23) and t(14;20)(q32;q11)]	0 (0)	0 (0)
Other/unknown IgH translocation partner	0 (0)	0 (0)
Both IgH translocation and trisomiesb	1(4)	1 (4)
Monosomy13/del(13q) in the absence of IgH translocation or trisomiesc	3 (11)	3 (13)
Normal or insufficient plasma cells	4 (14)	NA

Abreviations: FISH, fluorescent in situ hybridization; NA, not applicable.

Trisomies were detected on baseline FISH studies in 18 of 19 patients (includes 1 patient with tetrasomy 11) and by metaphase cytogenetics in 1 patient.

This patient had t(11;14) and trisomies.

Includes one patient with concurrent monosomy 14.