Desmoplastic Small Round Cell Tumor, a “Floating Island” Pattern in Pleural Fluid Cytology: A Case Report and Review of the Literature

Figure 5

A higher magnification view of DSRCT involving fluid. The image shows a cohesive and crowded group of lesional cells from the pleural fluid with central epithelioid forms. Small arrows mark peripheral elongated/spindled forms. Some of these cells have more dense chromatin, while others have chromatin that is similar to that seen in the epithelioid cells within the body of the island (cell block, hematoxylin and eosin stain, 600x).