PMC1215508_01
A. CT scan showing homogenous mass located at medial aspect of the left kidney and compressing it with minimal contrast enhancement. B. Intraoperative picture demonstrating the mass which is free from renal parenchyma (vertical arrow) and attached to renal pelvis with a narrow pedicle (horizontal arrow)
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F1
Computerized tomographic scan of the abdomen and pelvis showed a 9 x 7 cm uniformly solid mass with poor contrast enhancement situated in the inferomedial aspect of the left kidney [Fig 1A]. There was no adherence or attachment to the renal parenchyma [Fig 1B].
A. The scanner view (x25): B. High power picture (x100) Biphasic tumor with epithelial and stromal component. Stroma: Collagenized areas containing bundles of spindle cells. Epithelial component: Several 'microcysts' lined by cuboidal epithelium.
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F2
These areas were interspersed with thick walled, blood vessels, fatty tissue and several 'microcysts' lined by cuboidal epithelium [Fig 2A, B].