Fig. 6From: Giant cell angiofibroma of gingiva in tuberous sclerosis complex: a case report and literature reviewImmunohistochemical findings of gingival giant cell angiofibroma in the TSC patient. a-b Immunostaining for CD34 (a) and Bcl-2 (b) in tumor cells showed positive results (magnification, 200×). c-d CD31 (c) and SMA (d) were negative for tumor cells. e-f CD138 was positive for plasma cells around tumor and Ki67 labeling index was 1–2% (magnification, 200×)Back to article page