Reviewer's report
Title:Morphological change of a laterally spreading rectal tumor over a short
period
Version: 1Date:19 May 2013
Reviewer: Wei Gong
Reviewer's report:
The authors of this manuscript presesnted a unique and suggestive which
showed morphological change of a LST-Gs at the very early stage. At this stage,
the dilated round pits progressed to a IIIL pit pattern. It is interesting because it
revealed the progressional process of LST-G. However, Minor revisions should
be done for the mansucript.
1) In the case presentation part, it will be better if the author define the Pit pattern
of the dilated round pits at the first colonoscopy. In the discussion part, the author
mentioned that they" diagnosed it as a variation of a dilated type I or type II pit
which suggested a non-neoplastic lesion" . However, judging from the
stereomicroscopic image(Fig3a, Fig3b), some parts of the flat area also looks like
type IIIs according to Kudo's classification, wihch is neoplastic and is confirmed
by pathological examination(Fig4c).So whether the Pit pattern of the flat areas is
type I, type II or Type IIIs is a little bit confusing.
2) In Fig1. the Pit pttern of the flat areas at the first colonoscopy is not so clear. it
will be better if the author present a more magnified images.
Level of interest: An article whose findings are important to those with closely
related research interests
Quality of written English: Acceptable
Statistical review: No, the manuscript does not need to be seen by a
statistician.
Declaration of competing interests:
I declare that I have no competing interests!
Reviewer's report
Title:Morphological change of a laterally spreading rectal tumor over a short
period
Version: 1Date:19 May 2013
Reviewer: Wei Gong
Reviewer's report:
The authors of this manuscript presesnted a unique and suggestive which
showed morphological change of a LST-Gs at the very early stage. At this stage,
the dilated round pits progressed to a IIIL pit pattern. It is interesting because it
revealed the progressional process of LST-G. However, Minor revisions should
be done for the mansucript.
1) In the case presentation part, it will be better if the author define the Pit pattern
of the dilated round pits at the first colonoscopy. In the discussion part, the author
mentioned that they" diagnosed it as a variation of a dilated type I or type II pit
which suggested a non-neoplastic lesion" . However, judging from the
stereomicroscopic image(Fig3a, Fig3b), some parts of the flat area also looks like
type IIIs according to Kudo's classification, wihch is neoplastic and is confirmed
by pathological examination(Fig4c).So whether the Pit pattern of the flat areas is
type I, type II or Type IIIs is a little bit confusing.
2) In Fig1. the Pit pttern of the flat areas at the first colonoscopy is not so clear. it
will be better if the author present a more magnified images.
Level of interest: An article whose findings are important to those with closely
related research interests
Quality of written English: Acceptable
Statistical review: No, the manuscript does not need to be seen by a
statistician.
Declaration of competing interests:
I declare that I have no competing interests!
Please review this paper.
user
Reviewer's report
Title:Morphological change of a laterally spreading rectal tumor over a short
period
Version: 1Date:19 May 2013
Reviewer: Wei Gong
Reviewer's report:
The authors of this manuscript presesnted a unique and suggestive which
showed morphological change of a LST-Gs at the very early stage. At this stage,
the dilated round pits progressed to a IIIL pit pattern. It is interesting because it
revealed the progressional process of LST-G. However, Minor revisions should
be done for the mansucript.
1) In the case presentation part, it will be better if the author define the Pit pattern
of the dilated round pits at the first colonoscopy. In the discussion part, the author
mentioned that they" diagnosed it as a variation of a dilated type I or type II pit
which suggested a non-neoplastic lesion" . However, judging from the
stereomicroscopic image(Fig3a, Fig3b), some parts of the flat area also looks like
type IIIs according to Kudo's classification, wihch is neoplastic and is confirmed
by pathological examination(Fig4c).So whether the Pit pattern of the flat areas is
type I, type II or Type IIIs is a little bit confusing.
2) In Fig1. the Pit pttern of the flat areas at the first colonoscopy is not so clear. it
will be better if the author present a more magnified images.
Level of interest: An article whose findings are important to those with closely
related research interests
Quality of written English: Acceptable
Statistical review: No, the manuscript does not need to be seen by a
statistician.
Declaration of competing interests:
I declare that I have no competing interests!
assistant