BCOR and sarcoma: Similarly, the case classified as BCOR family sarcoma based on DNAm profiling (case 11) was antecedent to the identification of this category, but critical re-evaluation of the tumor confirmed the histologic appearance characterized by typical curvilinear vascular pattern, elongated cells with nuclei showing homogeneous finely dispersed chromatin, and a myxoid background, which is consistent with the diagnosis and positive nuclear immunostaining for BCOR.