Lee et al reported the metachronous advanced colorectal neoplasm prediction scoring (MAPS) model. This can help to identify a patient who may have a metachronous advanced colorectal neoplasm (ACRN). The authors are from the University of Ulsan in Seoul, Korea.
Patient selection: patient with colonoscopy data, 40 to 70 years old
Outcome: risk for metachronous advanced colorectal neoplasm
Metachronous indicates multiple primary lesions developing at intervals.
|
Term |
Features |
|
advanced colorectal neoplasm (ACRN) |
adenoma >= 10 mm in diameter OR villous adenoma OR adenoma with high grade dysplasia OR invasive cancer |
|
high risk CRN |
ACRN OR >=3 adenomas |
|
low risk CRN |
1 or 2 adenomas < 10 mm in diameter |
Parameters:
(1) age in years
(2) gender
(3) sessile serrated adenoma/polyp (SSA/P)
(4) high-risk CRN
|
Parameter |
Finding |
Points |
|
age in years |
40 to 49 years |
0 |
|
|
50 to 59 years |
1 |
|
|
60 to 70 years |
4 |
|
Gender |
female |
0 |
|
|
male |
4 |
|
SSA/P |
no |
0 |
|
|
yes |
4 |
|
high risk CRN |
no |
0 |
|
|
yes |
5 |
where:
• In theory serrated adenomas should be counted in the tally of adenomas.
total score =
= SUM(points for all 4 parameters)
Interpretation:
• minimum score: 0
• maximum score: 17
• A score >= 10 is associated with a high risk for metachronous advanced colorectal neoplasm.
Specialty: Hematology Oncology, Surgery, general, Gastroenterology
