title: Early radial digital neuropathy of the thumb due to flexor pollicis longus tendinitis: value of ultrasound in an uncommon mild neuropathy.
abstract: BACKGROUND
  A 50-year-old man developed intermittent paresthesia of the outer portion of the right thumb. Paresthesia increased with thumb abduction and flexion. The remainder of the physical examination was normal.
  
  
  METHODS
  Routine motor and sensory examinations of the median and ulnar nerves were within normal ranges.
  
  
  RESULTS
  Ultrasonographic studies revealed that a tenosynovitis of the flexor pollicis longus of the right thumb was compressing the radial digital nerve of the thumb.
  
  
  CONCLUSIONS
  Ultrasonographic evaluation was used in conjunction with nerve conduction studies to diagnose digital neuropathy. Ultrasound is a beneficial, complementary tool to electrodiagnostic studies, especially for uncommon focal neuropathies.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Ankara Physical Medicine and Rehabilitation Training and Research Hospital of the Ministry of Health, Ankara, Turkey. elifyalcin78@gmail.com
authors.forename: Elif
authors.initials: E
authors.lastname: Yalcin
authors.forename: Mufit
authors.initials: M
authors.lastname: Akyuz
authors.forename: Burcu
authors.initials: B
authors.lastname: Onder
mesh_terms: D006801:Humans; D008297:Male; D020425:Radial Neuropathy / Q000000981:diagnostic imaging* / Q000209:etiology; D012720:Severity of Illness Index; D052256:Tendinopathy / Q000150:complications / Q000000981:diagnostic imaging*; D013933:Thumb / Q000000981:diagnostic imaging / Q000294:innervation*; D014463:Ultrasonography