Figure 5From: Castleman’s disease in the retroperitoneal space mimicking a paraspinal schwannoma: a case reportPathological findings. Lymphocytes formed lymphoid follicles and capillary proliferation was observed (A). Capillaries were surrounded by hyaline sheaths (B). Immunostaining revealed that the proliferated lymphocytes were positive for the B-cell marker CD79a (C). The diagnosis of CD of hyaline-vascular type was established.Back to article page