Primary Intraosseous Synovial Sarcoma with Molecular Confirmation: Expanding and Clarifying the Spectrum of This Rare Neoplasm

Figure 3

Case 1: resection specimen demonstrating cortical erosion with bony permeation (a). Scattered foci of hemangiopericytoma-like vasculature were present (b). The tumor was monophasic, comprised of bland, ovoid spindle cells arranged in storiform (c) and fascicular (d) patterns.

(a)

(b)

(c)

(d)