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. 2024 Oct 7;14(1):171. doi: 10.1038/s41408-024-01153-0

Fig. 1. Morphological, immunohistochemical, and genetic features of three high-grade cases.

Fig. 1

A Case HG28 showed a diffuse proliferation of medium-sized lymphocytes with slight pleomorphism, irregular nuclei, and apoptotic bodies consistent with features intermediate between BL and DLBCL (H&E, original magnification at 400×). B MYC break-apart FISH probe showed two colocalizations in each cell consistent with the absence of gene rearrangement. C FISH analysis for 11q-aberration showed 2 green (11q23.3 minimal region gain, MRG), 2 orange (11q24.3 minimal region loss, MRL), and 2 aqua (CEN11 D11Z1) signals, compatible with a non-altered 11q chromosomal region. D Case HG33 depicted a DLBCL morphology showing a predominance of large centroblastic lymphocytes (H&E, original magnification at 400×). E MYC break-apart FISH probe showed one red signal, one green signal, and one colocalization, consistent with the rearrangement of the gene. F FISH analysis for 11q-aberration showed 2 green (11q23.3 MRG), 2 orange (11q24.3 MRL), and 2 aqua (CEN11 D11Z1) signals constellation, compatible with a non-altered 11q chromosomal region. G Case HG39 consisted of monotonous medium-sized lymphocytes with blastoid appearance (H&E, original magnification at 400×). H MYC break-apart FISH probe showed two colocalizations consistent with a non-rearranged pattern. I A non-prototypic terminal deletion of 11q24.3 region was identified in case HG39. The FISH constellation showed 2 green (11q23.3 MRG), 1 orange (22q24.3 MRL), and 2 aqua (CEN11 D11Z1) signals.