Formalin-fixed paraffin-embedded sections stained for GLUT1 (green), the endothelial marker Ulex Europaeus Agglutinin I (red), the nuclear stain Hoechst (blue) in the patient’s choroidal vessels (A), retinoblastoma choroidal vessels (B), infantile hemangioma (C), and Sturge-Weber syndrome -affected leptomeninges (D). Scale bars: 100 μm.