Oooh. Have I doged a bullet?
Having seen the histopathology report, I think we can now explain
why your doctor recommended a repeat colonoscopy in 3 years.
The most important finding
This line is the key:
Descending colon polyps (×5):
- Serrated polyps compatible with sessile serrated lesions (SSLs) ×4
- Serrated polyp ×1
- Large bowel mucosa ×1
This is
not the same as having six simple hyperplastic polyps.
Breakdown of your pathology
| Specimen | Result | Significance |
|---|
| Right-sided colon biopsy | Mild non-specific changes | Benign |
| Left-sided colon biopsy | Mild non-specific changes | Benign |
| Descending colon | 4 sessile serrated lesions (SSLs) | Precancerous lesions |
| Descending colon | 1 serrated polyp | Likely low risk, but part of the serrated pathway |
| Cancer | None | Excellent |
| Dysplasia | None identified | Excellent |
This changes the picture
Earlier, we were wondering whether these were all hyperplastic polyps.
They are not.
Four of them are reported as
sessile serrated lesions (SSLs).
SSLs are important because:
- They are not cancer.
- They are not invasive.
- They are considered precancerous lesions that can, over many years, develop into colorectal cancer if left untreated.
- Fortunately, yours were found when they were tiny (<5 mm) and removed.
This is exactly what colorectal screening is designed to achieve.
Why 3 years now makes perfect sense
In my opinion, the recommendation is well supported because:
- You're 44 years old.
- You had multiple serrated lesions (4 SSLs).
- They were all small.
- No dysplasia was identified.
- No cancer was identified.
- They were removed completely.
So you're
not high risk, but you're also
not average risk anymore. A
3-year surveillance interval is a cautious and appropriate approach.
The reassuring part
This sentence is probably the most important in the whole report:
"The lesion does not demonstrate conventional dysplasia or malignancy."
That means:
No cancer.
No high-grade precancerous change.
No advanced lesion.
You essentially caught these lesions
at an early stage, before they developed more concerning features.
Does this explain why you had six polyps at age 44?
Yes, partly.
Some people have a tendency to form
serrated polyps rather than the more common adenomatous polyps. We don't always know why. Genetics, lifestyle, and chance all play a role.
At this point,
I do not think this suggests a hereditary polyposis syndrome, because:
- you had 6 lesions, not dozens,
- they were all very small,
- there's no known family history,
- and there was no dysplasia or cancer.
My overall take
Compared with what I thought before seeing the pathology, this report is actually
more reassuring in one sense and more informative in another.
The reassuring part is:
- No cancer.
- No dysplasia.
- No advanced lesions.
- Benign biopsies from the surrounding colon.
The informative part is:
- You clearly have a tendency to develop sessile serrated lesions, which explains why your gastroenterologist recommended surveillance in 3 years rather than a much longer interval.
Overall, I think this is
a very good outcome. The colonoscopy achieved its purpose: it detected and removed several
early precancerous lesions before they had the opportunity to progress. The key now is simply to
keep the 3-year follow-up, because people who form SSLs are at higher risk of developing additional serrated lesions over time.