PMC3364047_01
Left eye swelling extending to the left side of the nose accompanied by bloody nasal discharge.
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F1
Yet, the symptoms progressed with additional symptoms of diplopia and bloody discharge from left nose (fig. 1).
MRI revealed a 3 x 5 x 7.5 cm mass in the left sinonasal area extending to the nasolacrimal duct (marked with arrow).
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F2
The mass also extended to the NLD, the left pterygomaxillary fossa, infratemporal fossa and middle cranial fossa (fig. 2).
Plasma cell infiltration within the mucosal glands (a, H&E, x400), the infiltrating cells positive for CD38 (b, x400) and kappa light chain (c, x400), and negative for lambda light chain (d, x400).
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F3
Excisional biopsy of the paranasal sinus revealed diffuse CD38-positive plasma cell infiltration with kappa light chain restriction (fig. 3).
Plasma cell infiltration underneath the surface epithelium in maxillary sinus (a, H&E, x400; b, H&E, x600).
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F4
Histopathologic examination of the surgical material showed diffuse plasma cell infiltration (fig. 4).