840253.fig.004a
(a)
840253.fig.004b
(b)
Figure 4: FISH analysis using ALK dual colour break-apart rearrangement probe showing breakage of the one allele of the ALK gene locus in many of the nuclei examined in left axillary lymph node biopsy, inset showing enlarged nucleus (original magnification ×200) (a) and the same findings in the peripheral blood (original magnification ×1000) (b).