Smooth, soft polypoid lesion in the ascending colon of a 75 year-old woman. Removal of a portion of overlying mucosa with a biopsy forceps revealed the underlying fatty tissue.
Lipomas are soft, and typically exhibit a "pillow" sign when compressed (center photo). Characteristic color alteration of melanosis coli in the photo at right.
Pedunculated lipoma in a 64 year-old man. The stalk, which was very thin, is visible behind the head of the polyp at the 2 o'clock position.
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