Fig. 4From: Ovarian hemangioma associated with tamoxifen therapy: a case reportEstrogen receptors are negative in endothelial cells of the hemangioma, but positive in stromal ovarian cells (10X) (on the left). Progesterone receptors are negative in endothelial cells of the hemangioma, but positive in stromal ovarian cells (10X) (on the right)Back to article page