Follicular dendritic cell sarcoma detected in hepatogastric ligament: A case report and review of the literature

Figure 1 Computed tomography scans of the tumor.

Figure 2 Gross anatomy of the spited tumor and its histology. A: Gross anatomy of tumor, spited specimens; B: Histology by H and E staining shows the mild shapes of follicular dendritic cell sarcoma, comprised of fascicular oval and spindle cells, as well as infiltration of small lymphocytes into the tumor (200 × magnification); C: The high power field of histology by H and E staining shows that cytoplasm is abundant and eosinophilic. The cell nuclei are small and clear with ovalular or long spindle shapes (400 × magnification).

Figure 3 Immunohistochemical staining of tumor tissues. Immunohistochemical images show positive staining for CD21, CD23 and CD35, which are specific biomarkers for diagnosing follicular dendritic cell sarcoma. Ki-67 staining shows 20% positive cells, while Epstein-Barr-encoded RNA was used as a negative stain. 200 × magnification for all images.