A) Parathyroid adenoma with residual compressed normal parathyroid gland and adjacent thymic tissue (scanning power); B) high power view showing part of the thymic gland (arrow head) and parathyroid adenoma surrounded and separated from residual normal parathyroid (dashed arrow) by a thin fibrous capsule (large arrow) (Hematoxylin & Eosin, 100×); C) microscopic thymoma, composed of spindle to oval cells with bland nuclei, forming a solid sheet without any pattern (Hematoxylin & Eosin, 200×).Microscopic thymoma and parathyroid adenoma: rare combination of two distinct pathologies. Walton B, Gleinser D, Boroumand N, Watts T, Underbrink M - Rare tumors (2014). Not Altered. CC,