title: Pseudoachalasia caused by retroperitoneal B-cell lymphoma.
authors.affiliation: Department of Medicine, University of Washington, Seattle, Washington, USA.
authors.forename: Alec J
authors.initials: AJ
authors.lastname: Moorman
authors.forename: Brant K
authors.initials: BK
authors.lastname: Oelschlager
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Rulyak
mesh_terms: D001706:Biopsy; D003680:Deglutition Disorders / Q000209:etiology; D004931:Esophageal Achalasia / Q000209:etiology* / Q000503:physiopathology; D004945:Esophagoscopy; D004947:Esophagus / Q000000981:diagnostic imaging; D006801:Humans; D016393:Lymphoma, B-Cell / Q000150:complications* / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D013902:Radiography, Thoracic; D012186:Retroperitoneal Neoplasms / Q000150:complications* / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D015431:Weight Loss