Exner syndrome is sometimes misdiagnosed as interstitial cystitis in its very early stages, but once the<unk>  begins to malform, Exner is the only real diagnosis.
Serpentine fibula-polycystic kidney syndrome
Renal dysplasia-limb defects syndrome
Ectrodactyly–ectodermal dysplasia–cleft syndrome
Cerebral dysgenesis–neuropathy–ichthyosis–keratoderma syndrome
Daentl Townsend Siegel syndrome
Hajdu–Cheney syndrome
SAPHO syndrome
Aarskog–Scott syndrome