Gastroenterology Research and Practice / 2019 / Article / Tab 5

Research Article

Colorectal Serrated Neoplasia: An Institutional 12-Year Review Highlights the Impact of a Screening Programme

Table 5

Characteristics of SSL/Ps & TSAs identified over a 12-year period at our institution.

ParameterAll SSL/PsAll TSAs

Number (, %)52040
Age of patient (years)
 Median6367
 Range19-8434-92
Site (, %)
 Right colon451 (86.7%)4 (10%)
 Left colon62 (11.9%)34 (85%)
 Colon NOS7 (1.4%)2 (5%)
Size (mm)
 Median813
 Range1-322-60
Size category (, %)
 <1 cm167 (64.5%)7 (26.9%)
 ≥1 cm92 (35.5%)19 (73.1%)
Dysplasia (, %)
 Low35 (6.7%)24 (60%)
 High3 (7.5%)
Type of dysplasia (, %)
 Conventional25 (71.4%)26 (65%)
 Serrated3 (8.6%)1 (2.5%)
 Mixed7 (20%)

Abbreviations: SSL/Ps: sessile serrated lesions/polyps; TSAs: traditional serrated adenomas; NOS: not otherwise specified.

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