Aggregate evidence quality: B; overwhelmingly consistent evidence from observational studies.
BenefitDetermine presence of abscesses, which may require surgical intervention; avoid sequelae because of appropriate aggressive management.
HarmExposure to ionizing radiation for CT scans; need for sedation for MRI.
CostDirect cost of studies.
Benefits-harm assessmentPreponderance of benefit.
Value judgmentsConcern for significant complication that may be unrecognized and, therefore, not treated appropriately.
Role of patient preferenceLimited.
Intentional vaguenessNone.
StrengthStrong recommendation.