title: MR appearance of the pseudocapsule of renal cell carcinoma and its pathologic basis.
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.
authors.affiliation: Imaging and Technical Diagnostic Center, NanFan Hospital, GuangZhou, GuangDong, People's Republic of China.
authors.forename: S Q
authors.initials: SQ
authors.lastname: Huang
authors.forename: S S
authors.initials: SS
authors.lastname: Zou
authors.forename: Q L
authors.initials: QL
authors.lastname: Huang
mesh_terms: D000328:Adult; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000473:pathology*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged