title: Contraction pattern variations in oesophagography.
abstract: In recent literature a pattern of transient transverse folds seen in oesophagography has been described as a new variant. It is suggested, however, that the pattern is part of a spectrum of oesophageal contractions that occurs with or without specific lesions, and that it is created by contraction of the transverse oblique muscles of the oesophagus.
mesh_terms: D004947:Esophagus / Q000033:anatomy & histology / Q000000981:diagnostic imaging* / Q000473:pathology / Q000502:physiology; D006801:Humans; D011859:Radiography