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(RadioGraphics. 1985;5:537-552.)
© RSNA, 1985

Carpet lesions of the colon

Stephen E. Rubesin M.D.1, Scott H. Saul M.D.2, Igor Laufer M.D.3, and Marc S. Levine M.D.3

1 The Department of Radiology, The Johns Hopkins Hospital, Baltimore.
2 From the Department of Pathology, Hospital of the University Pennsylvania, Philadelphia, Pennsylvania.
3 From the Department of Radiology, Hospital of the University Pennsylvania, Philadelphia, Pennsylvania.

Carpet lesions are flat lesions that spread along the surface of the colon, but show little protrusion into the lumen. They are best detected en face as nodular mucosal surface patterns in double contrast barium enema radiographs. All of the carpet lesions in this series were confined to the rectum, cecum and ascending colon; all were adenomas with varying amounts of villous change. One invasive adenocarcinoma was found. Our experience suggests that carpet lesions are often benign despite their large size and radiographic appearance.

Index Terms: Colon • neoplasms




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