A rare presentation of unicentric Castleman's disease in the thigh: A case report and review of literature

Figure 1 Magnetic resonance imaging showed a well-circumscribed and demarcated cystic lesion projected in the left inguinal region with eccentrically positioned signal void vascular, likely lymphoid in nature (arrow). A: Sagittal view. B: Coronal view.

Figure 2 Hematoxylin and eosin staining showing. A: Regressed follicles with increased endothelial venules; B: Higher magnification of one of the regressed follicles showing a prominent mantle zone (onion skin appearance) and penetrated by vessel.