Background: Acute appendicitis is the most common abdominal emergency. At present, the main treatments for periappendiceal abscess include antibiotics and surgery. However, the complications and mortality of emergency surgery are high. The preferred therapy is conservative treatment with antibiotics first, ultrasound-guided puncture drainage or surgical treatment is followed when necessary. Endoscopic retrograde appendicitis therapy (ERAT) for acute uncomplicated appendicitis have been proved clinically effective, but it is rarely used in periappendiceal abscess.
Case summary: We report a patient admitted to hospital because of "right lower abdominal pain for six days". The computerized tomography (CT) of patient showed that appendicitis with fecaliths and abscess in the pelvis. The patient was treated by CT-guided puncture and drainage of abdominal abscess combined with ERAT to remove appendiceal fecaliths, irrigation and stent placement.
Conclusion: The patient did not receive surgery because of impoverished family. Abdominal pain did not recur during the follow-up period. This case confirms the value of ERAT in the treatment of periappendiceal abscess.
Keywords: Case report; Colonoscopy; Endoscopic retrograde appendicitis therapy; Periappendiceal abscess; Transparent cap.
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