Fig 1From: Diagnostic use of fluorescence in situ hybridization in expert review in a phase 2 study of trabectedin monotherapy in patients with advanced, translocation-related sarcomaRepresentative images of a malignant peripheral nerve sheath tumor mimicking a poorly differentiated synovial sarcoma. a: The tumor consisted of solid proliferations of uniform, round tumor cells with round to oval nuclei. b: Tumor cells were focally positive for S-100 protein on IHC. c: Tumor cells were sparsely positive for cytokeratin AE1/AE3 on IHC, d: FISH revealed no SS18 split signalsBack to article page