Five masses of the renal capsule, which were studied angiographically, demonstrated a typical inward displacement of the renal parenchyma, and prominence and variable displacement of the renal capsular arteries. Benign lesions typically lacked malignant neovascularity and had a sharp interface with the renal parenchyma. The angiographic characterization of renal capsular lesions may help in identification of benign lesions and prevent unnecessary nephrectomy.
Eleven cases of colonic lymphangioma, including 3 that have not been reported previously, are reviewed. Radiologic analysis reveals that 9 presented as polypoidal mucosal lesions and only 2 had characteristic features at a submucosal lesion. A predominant occurence in females (70%) and during the sixth and seventh decades are noted.
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