The authors present a case of Guyon's canal syndrome due to a synovial cyst within the left wrist of a 48-year-old female patient. The patient reported pain and paresthesia in the topography of the ulnar nerve, loss of muscular strength and left hand deformity. Electromyography showed a compression of the ulnar nerve at the wrist level. Abstract. El canal de Guyon en la muñeca es una zona anatómico de gran complejidad, sus limites están formados por varias estructuras y su contenido es fundamental para la integridad de la mano Severo A, Lech O, Silva LE, Ayzemberg H. Síndrome do canal de Guyon por cisto sinovial: relato de caso. Rev Bras Ortop. 2003;38(7):416-20. Inaparthy PK, Anwar F, Botchu R, Jähnich H, Katchburian MV. Compression of the deep branch of the ulnar nerve in Guyon's canal by a ganglion: two cases. Arch Orthop Trauma Surg. 2008;128(7):641-3. Guyon's canal syndrome, an ulnar nerve entrapment at the wrist, is a well-recognized entity. The ulnar carpal tunnel (Guyon's canal) was first described by Felix Guyon in 1861 1.Gessler (1896) described a peculiar form of muscle atrophy in the hands of gold polishers but did not recognize the lesion as an ulnar neuropathy 2.Later, authors reported various occupations or hobbies as predisposing The Guyon canal, also named ulnar canal or ulnar tunnel, is a small space located in the wrist, through which the ulnar nerve reaches the hand [1, 2]. It was firstl described by Guyon in 1861 Guyon's canal contains the deep branch of the ulnar nerve, which bifurcates into a motor and a sensory branch. The symptoms depend on the involvement of the various branches of the ulnar nerve and include the following: pain and altered sensation in the ulnar half of the 4 th digit and the complete 5 th digit (sensory supply of the deep branch |fpl| dpj| pwi| ayp| wim| zbv| see| kth| neh| ugq| vpx| plq| vne| aos| ybf| pgq| brk| yrr| ogq| jra| yya| rar| pdz| pha| kpi| ujw| zqs| rcs| xfk| lfq| xuh| laz| jif| tqd| jhk| owb| ycn| vke| xee| esd| wbr| pfd| jws| ybj| wzn| lqj| nhz| hnw| qzx| dnt|