Idiopathic Multicentric Hyaline Vascular-Type Castleman Disease

Figure 2

Lymph node biopsy showing features of Castleman disease, hyaline vascular type. (a) HE coloration, 10x amplification. Numerous small follicular structures, follicular dendritic type cells, and blood vessels, some with hyaline walls. (b) HE coloration, 20x amplification. Concentric layers of lymphocytes around the follicles, the mantle zone.

(a)

(b)