Case Report

The Rare Case of an Adult-Onset Xanthogranuloma of the Paranasal Sinuses: A Histological Dilemma

Figure 5

(a) Haematoxylin and eosin stain ×100 magnification: showing sheets of histiocytes with abundant eosinophilic cytoplasm intermingled with polymorphs. (b) Haematoxylin and eosin stain ×100 magnification: showing multinucleate giant cells in the infiltrate (). (c) CD68 stain ×200 magnification: highlighting histiocytes (). (d) S100 stain ×200 magnification: a giant cell shows engulfed polymorphs in its cytoplasm ().
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