Figure 2: Paraffinoma (microscopic findings). (A) Under low-power magnification, numerous oil cysts and cellular infiltrations of soft tissue between the muscle fibres are apparent (haematoxylin and eosin; original magnification 100X). Under higher-power magnification, multinucleated giant cells, foamy macrophages, a few lymphocytes and eosinophilic leucocytes along with mast cells can be recognized within the interstitial infiltrate. The conventional histology findings were proven by immunohistochemistry for (B) CD163, (C) mast cell tryptase (D) CD3, and (E) CD20 (magnification (B-E) 200X).