A review of the clinical features and treatment method of cap polyposis
Objective To summarize the characteristics of cap polyposis patients to enhance the understanding of cap polyposis among clinical practitioners.Methods Eight cases of histologically confirmed cap polyps from our center from 2010 to 2021 were included for general descriptive analysis.It was also compared and analysed with 3 individual case reports on cap polyps published in China so far.Results Among the 8 patients in our center,the clinical manifes-tations included intermittent blood in the stool(6 cases,75.0%),mucus stool(2 cases,25.0%),abdominal pain(1 case,12.5%),diarrhea(4 cases,50.0%),a feeling of urgency(2 cases,25.0%)and rectal mass(2 cases,25.0%).The number of polyps ranged from 1 to more than 10;the diameter of the lesions ranged from 1.1 to 8.0 cm;the lesions were mostly located in rectum(6 cases,75.0%);the endoscopic patterns were cap-shaped(3 cases,37.5%),bulging(2 cases,25.0%),hemispherical(2 cases,25.0%)and disc-shaped(1 case,12.5%),etc.Pathological findings in all 8 cases showed inflammatory granulation tissue,elongated and dilated glands,and in some cases,mucus lakes and mucus spillage.The treatment modalities included EMR,ESD,surgery,Mesalazine suppository therapy,quadruple anti-H.pylori therapy.In 3 cases,the cap polyps remained after 3-6 months of initial treatment.After additional endoscopic treatment(2/3)and anti-H.pylori treatment(1/3).All patients had good results and no recurrence at a maximum follow-up of 90 months.Conclusion Cap polyposis in our center is predominantly male with a young age of onset.The main clinical symptom is haemorrhage and the lesion is mainly in the rectum.Some(1/4)patients have H.pylori infection and those with H.pylori infection require prompt debridement.In addition to H.pylori eradication treatment,endoscopic excision of the lesion and surgical treatment can be effective.
Cap polyposisHelicobacter pyloriInflammatory polypsColonic polyps
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