Familial<unk>  alone is scarce, especially in paediatric cases. Consequently,<unk> , which has a familial predisposition, is an extremely rare syndrome. Current cases of<unk>  have only implicated children in its pathogenesis and there are only five, separate, known cases as of 2017. These cases involve a total of nine children, where each case refers to individual affected families. All cases, except for one, involves consanguineous parents.
Achalasia microcephaly
Laryngo-onycho-cutaneous syndrome
Odontoma dysphagia syndrome
Retained antrum syndrome
complications of Hiatal hernia
Atresia
Ontario Minamata disease
Esophageal achalasia