Fig. 1
Gross and histopathological findings. A Gross appearance of the splenic lesion on sectioning. B Microscopic appearance of the lesion: intersecting fascicles of spindle-to-ovoid cells within an inflammatory background (Hematoxylin and Eosin stain; original magnification: 100x). C On higher magnification, neoplastic cells show large, ovoid nuclei with prominent eosinophilic nucleoli; some mitoses are identified (Hematoxylin and Eosin stain; original magnification: 400x). D Areas of hyaline fibrosis with plasma cell infiltration (Hematoxylin and Eosin stain; original magnification: 100x)