Littoral cell angioma: A case report

Figure 1 Computed tomography abdomen and pelvis, axial view of hypodense splenic lesion.

Figure 2 High power view of the tumor demonstrates tall columnar endothelial cells that line the cyst-like spaces. These cells show no cytologic, nuclear atypia or mitotic figures (H and E stain, × 400).

Figure 3 Low power view of the well-demarcated tumor with uninvolved spleen. The tumor has anastomosing vascular channels and cyst-like hemorrhagic spaces.

Figure 4 Endothelial cells lining the cyst-like spaces are immunoreactive. A: CD68 (CD68 stain, × 100); B: Histiocytic marker lysozyme (lysozyme stain, × 400); C: Endothelial marker CD34 and the histocytoid cells are negative for CD34 (CD34 stain, × 400); D: Endothelial marker CD31 (CD31 stain, × 400).