Primary cutaneous follicle center lymphoma

(A) Clustered plum-colored nodules covered by thinned, glistening epidermal layer.
(B) Scanning magnification showing coalescent nodules forming follicle-like architecture.
(C) Higher magnification of malignant centrocytes and centroblasts.
(D) One-micron, toluidine blue-stained section showing cytologic features of centrocytes and centroblasts.