Indolent T-cell lymphoma of the gastrointestinal tract coexisting with gastric signet-ring cell carcinoma: A case report and review of literature

Table 1 T-cell receptor gene rearrangement results

Mastermix	TCRB tube-A	TCRB tube-B	TCRB tube-C	TCRG tube-A	TCRG tube-B	TCRD
Target	νβ-Јβ	νβ-Јβ	Dβ-Јβ	νγ1-8, νγ10 + Јγ	νγ9, νγ11 + Јγ	νδ + Dδ + Јδ
Valid detection range (bp)	240-285	240-285	170-210, 285-325	145-255	80-140, 160-220	120-280
Highest peak/third highest peak ratio	> 3-5	> 3-5	> 3-5	> 5-7	> 5-7	> 5-7
Result	+	+	-	-	-	-

If any reaction tube (excluding controls) exhibited one or two discrete amplification peaks within the valid detection range and if the peak intensity met the criteria specified in Table 1 (maximum peak height > 1000), the sample was considered positive for T-cell clonality. TCR: T-cell receptor.