Review for 10.1186/s12876-021-02052-5 (2021)

Reviewer’s report
Title: 
Sweet's syndrome and mucosal prolapse polyps in a male patient with
ulcerative colitis
Version: 
0 
Date: 
23 Aug 2021
Reviewer's report:
1. INTRODUCTION:
- Row 1: I would remove this sentence: "which is a subtype of Inflammatory
Bowel Disease". UC is an Inflammatory Bowel Disease. 
- I would change this sentence "And extraintestinal manifestations could be
encountered in some cases." with another one like this: 
"Almost 50% of patients
will develop extraintestinal manifestations during their lifetime" (reference:
Vavricka SR, Brun L, Ballabeni P, et al. Frequency and risk factors for
extraintestinal manifestations in the swiss inflammatory bowel disease cohort.
Am J Gastroenterol 2011;106:110-119.). 
I would put a reference for each skin manifestation in IBD. Also, a reference for
the following sentence is missing: "SS, as a rare skin manifestation, needs to be
diagnosed promptly to avoid life-threatening conditions."
2. CASE PRESENTATION
- "He was diagnosed with UC 3 years ago but underwent substandard treatment".
What do you mean with "substandard treatment"? I would change this definition.
- The first paragraph of this section needs to be re-written because it is unclear. 
- Sometimes the authors reported the abbreviation MMPs and sometimes MPPs.
Change them, please. 
Overall, the entire manuscript needs a revision by a native English speaker. 
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Is the study design appropriate to answer the research question (including the use
of appropriate controls), and are the conclusions supported by the evidence
presented?
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from apparent manipulation?
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