Unusual Presentation of Follicular Dendritic Cell Sarcoma as a Cystic Neck Swelling

Figure 6

(a) Tumor cells show strong membranous staining for CD23 (magnification, 400x). (b) Tumor cells show positive staining for CD35 (magnification, 400x). (c) Tumor cells show weak membranous staining for CD21 (magnification, 400x). (d) Tumor cells show negative staining for panCK (magnification, 400x). (e) Tumor has a low mitotic activity of 4–5% (magnification, 400x).

(a)

(b)

(c)

(d)

(e)