Patients with chest pain and/or dysphagia may present non-specific motor abnormalities that do not fit into classical categories of primary motor disorders. Two such patients are described, both with segmental aperistalsis of the distal oesophagus and with fairly normal proximal motility and LES function. Delayed radionuclide oesophageal transit was noted in both cases. Medical treatment was only partially effective and one patient required pneumatic dilatation. The aperistaltic segments have remained unchanged over 3-4 year follow-ups. These patients account for less than 1% of all those diagnosed with oesophageal motor abnormalities in our hospital in the last ten years.