Fig. 2. Histological characterization of small round cell sarcoma tumoroids.

A Representative images of H&E staining of tumor tissue (top) and matching tumoroids (bottom) derived from the indicated fusion-positive tumor types (n = 3, individual tumoroids). Scale bars: 100 µm, zoom-in 50 µm. B Representative images of CD99 staining of tumor tissue (top) and matching tumoroids (bottom) (n = 3, individual tumoroids). Scale bars: 100 µm, zoom-in 50 µm. C Representative images of WT1 staining of tumor tissue (top) and matching tumoroids (bottom) (n = 3, individual tumoroids). Scale bars: 100 µm, zoom-in 50 µm.