title: [Distinctive features of the os naviculare pseudarthrosis vs the os naviculare accessorius].
abstract: We report on two cases in which the differential diagnosis between an os tibiale externum (os naviculare accessorius) and a post-traumatic pseudarthrosis of the os naviculare was subject to discussion.Both patients had suffered an acute trauma in the region of the middle foot and showed identical clinical symptoms. Conventional X-ray did not allow a definite classification of the diagnosis either.However, this was possible in both cases by virtue of typical signs evidenced by computed tomography and magnetic resonance imaging.
authors.affiliation: Orthopädische Universitätsklinik Tübingen. Marc.Schuler@med.uni-tuebingen.de
authors.forename: M K
authors.initials: MK
authors.lastname: Schuler
authors.forename: F
authors.initials: F
authors.lastname: Dammann
authors.forename: B
authors.initials: B
authors.lastname: Schewe
authors.forename: E
authors.initials: E
authors.lastname: Winter
authors.forename: K
authors.initials: K
authors.lastname: Weise
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011542:Pseudarthrosis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013628:Talus / Q000002:abnormalities*; D013639:Tarsal Bones / Q000002:abnormalities / Q000000981:diagnostic imaging / Q000293:injuries; D014057:Tomography, X-Ray Computed