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MR appearance of the pseudocapsule of renal cell carcinoma and its pathologic basis
S Q Huang1, S S Zou, Q L Huang
1Imaging and Technical Diagnostic Center, NanFan Hospital, GuangZhou, GuangDong, People's Republic of China.
Urologic Radiology
|January 1, 1992
Abstract:
The pseudocapsule of renal cell carcinoma (RCC) appears as a low-intensity band or rim on magnetic resonance (MR) images. The frequency of its appearance differed on T1- and T2-weighted images. In our group of 19 RCC (in 18 patients), it appeared on 26.3% of T1-weighted images and on 57% of T2-weighted images. The pathology of the pseudocapsule on MR is its thickness and composition. On T1-weighted images, the appearance of the pseudocapsule is mainly related to the fibrous element, and on T2-weighted images to the fibrous element and compressed renal parenchyma.