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13 Possible Causes for Atrophy of the Thenar and Hypothenar Muscles

  • Platyspondyly

    , SOFT TISSUE: Thenar muscle atrophy; Hypothenar muscle atrophy LABORATORY ABNORMALITIES: Lysyl pyridinoline/hydroxylysyl pyridinoline (LP/HP) ratio approximately 1; Normal[] muscle atrophy; Hypothenar muscle atrophy; Inability to adduct thumbs; Short metacarpals; Short phalanges; Widened metaphyses (metacarpal and phalanges); Flattened epiphyses[] [Limbs]; Joint laxity (elbow); Widened metaphyses (elbows and knees); [Hands]; Small joint laxity; Finger contractures; Slender, tapered fingers; Finely wrinkled palms; Thenar[]

  • Ulnar Nerve Entrapment

    […] of muscles, mainly the hypothenar and interossei with sparing of the thenar muscles Weak finger abduction and adduction movement (interossei) Weak thumb adduction movement[] Guyon's Canal Syndrome symptoms include: Muscular atrophy - Primarily the hypothenar muscles and interossei with muscle sparing of the thenar group: weakened finger abduction[] […] intrinsic muscles of the hand Claw hand ("Hand of Benediction") Symptoms manifestation caused by entrapment and impingement of the ulnar nerve at the Guyon’s canal consist of: Atrophy[]

  • Monomelic Amyotrophy

    At physical examination, oblique atrophy was obvious (atrophy of the thenar and hypothenar eminences and of the cubital border of the forearm, with relative sparing of the[] […] the intrinsic hand muscles (interossei, thenar, and hypothenar muscle groups) as well as the ulnar side of the forearm.1,3 There is sparing of brachioradialis muscle giving[] The clinical features of Hirayama disease are: 1) asymmetrical weakness of the distal upper extremities, with atrophy of the thenar and hypothenar eminence and relative sparing[]

  • Thoracic Outlet Syndrome

    Moderate atrophy in the left thenar, hypothenar and interosseous muscles was noted, giving an impression of smaller hand ( Figure ).[] There was weakness (grade 3-4 on MRC scale) of thenar, hypothenar and intrinsic muscles of the left hand.[] Mild atrophy of the left forearm flexor muscles was noted as well. Deep tendon reflexes were normal and symmetrical.[]

  • Brachial Plexus Neuritis

    Clinically, the thenar atrophy seems to be more prominent than the hypothenar atrophy, probably because the thenar muscles are innervated mostly by the T1 root which is more[] It is quite rare and it manifests as a typical lower trunk plexopathy with weakness and atrophy of the hand muscles and of the long finger flexors (FPL and FDP) as well as[]

  • Distal Hereditary Motor Neuropathy

    Members of the two families suffered from atrophy and weakness of the first dorsal interosseous and thenar muscles; however, the hypothenar muscle bulk and strength was relatively[] In all affected FC465 family members, stridor and shortness of breath were the first and predominant symptoms; however, in FC654 family members, hand muscle weakness occurred[]

  • Triple A Syndrome

    Neurological evaluation revealed absent gag and palatal reflex with thenar and hypothenar muscles atrophy.[]

  • Myopathy, Endocrine

    The affection of distal parts of the limbs is severe: side by side with atrophy and weakness of little wrists muscles (especially thenar and hypothenar eminences) the expressed[] Atrophy and weakness of hips muscles including the quadriceps muscles arise very early.[]

  • Neurilemmoma

    Modified McCormick scale Neurological Examination The patient presented with muscle wasting, bilateral atrophy of the thenar and hypothenar eminences, quadriparesis (3 on[]

  • Charcot Marie Tooth Disease

    This is followed by progressive weakness and atrophy of thenar and first dorsal interosseus muscles; hypothenar eminence is spared until later in the course of illness.[] Progressive weakness and atrophy of the thenar and first dorsal interosseus muscles are the major complaints in affected individuals ( Figure 2 , Table 3 ).[] Thenar and first dorsal interosseus muscle wasting with relatively preserved hypothenar in an individual with dSMA-V phenotype The lower limbs are involved in about half of[]

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