Per-oral endoscopic myotomy for esophageal achalasia in a case of Allgrove syndrome

Allgrove syndrome, also known as Triple A syndrome, is a rare autosomal recessive genetic disease characterized by three signs: esophageal achalasia, adrenocorticotropic hormone refractoriness, and alacrima. A 31-year-old male presented to our hospital for treatment of difficulty swallowing caused by esophageal achalasia. Because he had complicating alacrima, a neurologic disease, and a family history of consanguineous marriage, a genetic neurologic disease was suspected. Then, a mutation in the achalasia–addisonianism–alacrima syndrome gene was identified. With the diagnosis of Allgrove syndrome, a per-oral endoscopic myotomy (POEM) was performed for esophageal achalasia. After the POEM, the symptoms and the esophageal pressure findings ameliorated quickly, with no recurrence noted throughout a follow-up of more than 1 year. Here, we report the first case of POEM performed for esophageal achalasia in Allgrove syndrome.