title: Mistaken diagnosis of psychogenic gait disorder in a man with status cataplecticus ("limp man syndrome").
abstract: We report on a 45-year-old man with a history of multiple psychiatric admissions for a gait disorder and episodic weakness thought to be psychogenic who was subsequently diagnosed with status cataplecticus due to narcolepsy. The gait difficulties resolved with venlafaxine. This case demonstrates that status cataplecticus can be misdiagnosed as a psychogenic gait disorder.
authors.affiliation: Beth Israel Deaconess Medical Center and Harvard Medical School, Department of Neurology, Boston, Massachusetts, USA.
authors.forename: David K
authors.initials: DK
authors.lastname: Simon
authors.affiliation: Center for Narcolepsy, Stanford University, Palo Alto, California, USA.
authors.forename: Seiji
authors.initials: S
authors.lastname: Nishino
authors.affiliation: Beth Israel Deaconess Medical Center and Harvard Medical School, Department of Neurology, Boston, Massachusetts, USA.
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Scammell
mesh_terms: D002352:Carrier Proteins / Q000134:cerebrospinal fluid; D002385:Cataplexy / Q000150:complications*; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D020821:Dystonic Disorders / Q000134:cerebrospinal fluid / Q000150:complications* / Q000175:diagnosis*; D005684:Gait; D006683:HLA-DQ Antigens / Q000134:cerebrospinal fluid; D059866:HLA-DQ beta-Chains; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins; D008297:Male; D008875:Middle Aged; D009479:Neuropeptides / Q000134:cerebrospinal fluid; D000068797:Orexins; D012895:Sleep, REM / Q000502:physiology
chemical_list: D002352:Carrier Proteins; D006683:HLA-DQ Antigens; D059866:HLA-DQ beta-Chains; C069051:HLA-DQB1 antigen; D047908:Intracellular Signaling Peptides and Proteins; D009479:Neuropeptides; D000068797:Orexins