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. 2018 Sep 15;13:73. doi: 10.1186/s13000-018-0752-6

Fig. 3.

Fig. 3

Pathological findings of CCSLGT with EWSR1 and CREB1 rearrangements. a CCSLGTs often exhibited sheet-like proliferation of polyhedral and epithelioid tumor cells (200×). b Areas of pseudo-papillary growth pattern around the vasculatures were also observed (200×). c Tumor cells had mildly irregular-shaped round nuclei showing a coarse chromatin pattern and lightly eosinophilic to less frequently clear cytoplasm. Nucleoli were inconspicuous (400×). d Osteoclast-type giant cells were scattered in the tumor (400×). e. FISH of EWSR1 split signals. Tumor cells showed EWSR1 split signal with a pair of fused (arrow) and split (arrow head) patterns (1000×). f. FISH of CREB1 split signals. Tumor cells showed CREB1 split signal with a pair of fused (arrow) and split (arrow head) patterns (1000×)