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Original ArticleOpen Access
Clinical Characteristics of Colo rectal Polyp in Thai Children : A Retrospective Study
Waitayakul S 
,
Singhavejsakul J ,
Ukarapol N
,
Singhavejsakul J ,
Ukarapol N SATAWAN WAITAYAKUL,MD*,
JESDA SINGHAVEJSAKUL, MD**,
NUTTHAPONG UKARAPOL,MD*
Background :
It
was believed that more than 90 per cent of children with colorectal polyp
had a single lesion, located in the rectosigmoid colon, therefore, sigmoidoscopy with polypectomy was
the treatment of choice. After a wide use of pediatric colonoscopy, this concept has been changed.
Material and Method : This study was aimed to describe clinical characteristics of colorectal
polyp in Thai children. Medical records of children with colorectal polyp were retrospectively reviewed.
Comparison between polyposis coli and children with less than 5 polyps were also analyzed.
Results : There were 93 patients, 43 females and 50 males. The average age was 5.1 years.
Lower GI bleeding and prolapse of rectal polyp comprised the two most common presentations, 93.5
and 39.8 per cent, respectively. The mean duration of symptoms was 5.6 months. Only 50.6 per cent
had rectal polyp noted by digital examination. Investigations included sigmoidoscopy (n
=
77), colono-
scopy (n
=
16), and barium enema (n
=
16). Eight per cent of the cases had more than 5 polyps. Location
of the polyps was noted in the rectosigmoid colon (88.2%), descending colon (4.3%), right-sided colon
(4.3%), and pancolonic (3.2%). Of all the patients, 11.8 per cent had the polyp above the rectosigmoid
region, whereas 50 per cent of those who underwent colonoscopy (n
=
16) had the polyps noted pro-
ximal to this region. Older age, lower hematocrit, and more frequent right-sided polyps were signifi-
cantly associated with polyposis coli (p
<
0.05). Only 2 patients with polyposis coli were treated by
colectomy. Histopathology included juvenile polyp (95%), inflammatory pseudopolyp (2.5%), and
hyperplastic polyp (2.5% ).
Conclusion : Most of the children with colorectal polyp had juvenile polyp that is commonly
found in the rectosigmoid colon. However, a significant number of patients had carrying polyps pro-
ximal to the rectosigmoid region, which would be easily missed by sigmoidoscopy. With the concern
42
JESDA SINGHAVEJSAKUL, MD**,
NUTTHAPONG UKARAPOL,MD*
Background :
It
was believed that more than 90 per cent of children with colorectal polyp
had a single lesion, located in the rectosigmoid colon, therefore, sigmoidoscopy with polypectomy was
the treatment of choice. After a wide use of pediatric colonoscopy, this concept has been changed.
Material and Method : This study was aimed to describe clinical characteristics of colorectal
polyp in Thai children. Medical records of children with colorectal polyp were retrospectively reviewed.
Comparison between polyposis coli and children with less than 5 polyps were also analyzed.
Results : There were 93 patients, 43 females and 50 males. The average age was 5.1 years.
Lower GI bleeding and prolapse of rectal polyp comprised the two most common presentations, 93.5
and 39.8 per cent, respectively. The mean duration of symptoms was 5.6 months. Only 50.6 per cent
had rectal polyp noted by digital examination. Investigations included sigmoidoscopy (n
=
77), colono-
scopy (n
=
16), and barium enema (n
=
16). Eight per cent of the cases had more than 5 polyps. Location
of the polyps was noted in the rectosigmoid colon (88.2%), descending colon (4.3%), right-sided colon
(4.3%), and pancolonic (3.2%). Of all the patients, 11.8 per cent had the polyp above the rectosigmoid
region, whereas 50 per cent of those who underwent colonoscopy (n
=
16) had the polyps noted pro-
ximal to this region. Older age, lower hematocrit, and more frequent right-sided polyps were signifi-
cantly associated with polyposis coli (p
<
0.05). Only 2 patients with polyposis coli were treated by
colectomy. Histopathology included juvenile polyp (95%), inflammatory pseudopolyp (2.5%), and
hyperplastic polyp (2.5% ).
Conclusion : Most of the children with colorectal polyp had juvenile polyp that is commonly
found in the rectosigmoid colon. However, a significant number of patients had carrying polyps pro-
ximal to the rectosigmoid region, which would be easily missed by sigmoidoscopy. With the concern
42
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