Collagenous Fibroma (Desmoplastic Fibroblastoma) with Vertebral Body Erosion

<table>Full length Tru-cut biopsy of the tumor.  Note the entrapment of the skeletal muscle and adipose tissue at the periphery (double arrow) and involvement of the bone at the other end (single arrow).  (H&amp;E, 40X).</table>

Sarcoma

fig3

Figure 3

Figure 3: Collagenous Fibroma (Desmoplastic Fibroblastoma) with Vertebral Body Erosion 