1. Renal Cell Carcinoma: Diagnosis Based on Metastatic Manifestations
Dietlind L. Wahner-Roedler, M.D., Thomas J. Sebo, M.D., Ph.D. 
Mayo Clinic Proceedings 
Volume 72, Issue 10, Pages (October 1997)
DOI: /
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2. Fig. 1
Axial computed tomographic scans of head with bone window (left) and noncontrast (right) images: well-defined mass (3- by 4- by 5-cm) centered in midline occipital bone with bony matrix centrally and soft tissue peripherally.
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3. Fig. 2
Arterial-phase left common carotid angiogram, showing large vascular mass centered in occipital bone. Predominant arterial supply is through enlarged occipital artery (arrow). Tumor stain (arrowheads).
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4. Fig. 3
Gadolinium-enhanced axial T1-weighted magnetic resonance images, showing vascular mass abutting parasagittal cerebellar hemispheres and, to a lesser extent, occipital lobes. Subtle parenchymal invasion cannot be excluded. Tumor involves proximal transverse sinus (arrow) and invades torcular Herophili (parentheses).
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5. Fig. 4
Needle biopsy specimen of brain containing nests of metastatic renal cell carcinoma. Note prominent vascularity. (Hematoxylin-eosin; ×20.) Inset, Prominent nucleoli seen in most cell nuclei. (Hematoxylin-eosin; ×63.)
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