Nutcracker esophagus and jackhammer esophagus are largely unknown motility 
disorders, also sometimes called hypertensive and hypercontractile peristalsis, 
respectively. There is currently no standardized diagnostic or management plan 
for these diseases. Here, we report on three patients with jackhammer/nutcracker 
esophagus who were treated with either peroral endoscopic myotomy or a systemic 
steroid regimen, focusing particularly on two novel presentations of nutcracker 
and jackhammer esophagus involving eosinophilic infiltration into the muscularis 
propria, and their responses to both interventions.