Figure 4
From: Calcifying fibrous tumor presenting as rectal submucosal tumor: first case reported in rectum
Microscopic findings of the tumor. (A) Whole mount of the well-circumscribed tumor located in the submucosa (H&E x1.4). (B) Microscopic finding of the tumor shows dense fibrous tissue and lymphoid aggregates (H&E x100). (C) The spindle cells have bland nuclei and indistinct cytoplasm (H&E x400). (D) Psammomatous or dystrophic calcifications are seen (H&E x100). (E) Metaplastic ossifications are also noted (H&E x100). (F) Immunohistochemical staining for vimentin shows diffuse positive for tumor cells (arrow) (x400).