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Figure 4a and b: (a) Histology showing hyperkeratosis, hypergranulosis, irregular acanthosis and proliferation of spindle-shaped endothelial cells forming slit-like vascular spaces in upper and middle dermis admixed with variable lympho-plasmacytic infiltrate, and hemorrhage (H and E, ×100). (b) Promontory sign; protrusion of new vessels into existing large vessel (H and E, ×400).

Figure 4a and b: (a) Histology showing hyperkeratosis, hypergranulosis, irregular acanthosis and proliferation of spindle-shaped endothelial cells forming slit-like vascular spaces in upper and middle dermis admixed with variable lympho-plasmacytic infiltrate, and hemorrhage (H and E, ×100). (b) Promontory sign; protrusion of new vessels into existing large vessel (H and E, ×400).