Unilateral Nasal Congestion and Headache: Renal Cell Carcinoma Metastasis to the Sinuses

[...]a computed tomography (CT) sinus was obtained (Figure 1) that showed a large hyperdense mass within the sphenoid sinus and posterior nasal cavity, eroding into the right upper clivus, anterior skull base and cranial fossa, with destruction of the right ethmoid septae and right posterior middle turbinate, and early extension into the medial aspect of the right orbit. RCC is rare and accounts for 2% of all adult malignancies.1 RCC is most often diagnosed during...