Angiolymphoid hyperplasia with eosinophilia (vessel, temporal region, biopsy). A. Low magnification demonstrates a vessel wall infiltrated by small lymphoid cells. B. Higher magnification demonstrates a population of lymphoid cells with prominent vascularity. C. There are focally increased eosinophils and reactive "epithelioid" endothelial cells. D. The atypical lymphoid cells show small amount of clear cytoplasm with scattered eosinophils in the background.