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Table 1 Diagnostic criteria in Bardet-Biedl syndrome (BBS)

From: Bardet-Biedl syndrome with end-stage kidney disease in a four-year-old Romanian boy: a case report

Primary features of BBS Secondary features of BBS
Retinal dystrophy Developmental delay
Post-axial polydactyly Behavioral problems
Obesity Neurological problems
Hypogenitalism Speech disorder
Renal abnormalities Brachydactyly, syndactyly, or clinodactyly
Learning disabilities Dental anomalies
  Nephrogenic diabetes insipidus
  Diabetes mellitus
  1. Features in our patient are shown in bold.