Adult studies marked in bold , pediatric studies initalic . Abbreviations: NR = not reported L = left R = Right B = Bilateral M = male F = Female Symbols: ~ RCS = retrospective cohort study *all patients (also including other than 2nd branchial anomalies) ** 90 patients had cleft sinus or cyst, 6 had cleft cartilage remnant. ***= (1 cyst and fistela bilateral) ∟= average ♦ in only 19/32 patients the perioperative diagnosis of 2nd branchial cyst was made. Recurrence and complications were calculated for 32 patients.
Critical Appraisal of Topic of studies in Appendix 3