Serrated Lesions of the Colon-Rectum: A Focus on New Diagnostic Tools and Current Management

Figure 4

Confocal laser endomicroscopy of serrated lesions (from archives of Center of Excellence for Technological Innovation in Surgery). (a) Hyperplastic polyp, seen with low magnification: stellate crypt opening (red arrows) and dark epithelial borders. The vessel architecture demonstrates an increase in pericryptic capillary density (red arrowhead). (b) Sessile serrated adenomas/polyps (high magnification): branching crypts (yellow arrows) and an irregular architecture with abnormal-shaped crypts and dystrophic goblet cells (yellow arrowheads).

(a)

(b)