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58 Possible Causes for Weakness of the Extensor Muscles of the Hands

  • Distal Myopathy Type Welander

    Weakness slowly progresses to all small hand and lower leg muscles.[rarediseases.info.nih.gov] […] in the distal upper extremities, usually finger and wrist extensors which later progresses to all hand muscles and distal lower extremity, primarily in toe and ankle extensors.EpidemiologyWDM[malacards.org] […] wrist extensors which later progresses to all hand muscles and distal lower extremity, primarily in toe and ankle extensors.[rarediseases.info.nih.gov]

  • Distal Myopathy

    Some patients also had proximal weakness, but none had signs of finger or hand extensor muscle involvement, even in advanced stages of the disease.[ncbi.nlm.nih.gov] The disease begins with paresis and atrophy of the extensor and small muscles of the distal portion of the extremities.[jamanetwork.com] : Most common Legs (Foot drop): 25% Weakness Hands Legs in most Muscles involved: Long finger extensors; Intrinsic hand; Thumb & index-finger Progression to legs: Toe & ankle[neuromuscular.wustl.edu]

  • Cervical Herniated Disc

    C5 – C6 (C6 nerve root) – Can cause weakness in the biceps (muscles in the front of the upper arms) and wrist extensor muscles.[westsidemedicaltx.com] C5-C6 (C6 nerve root): A C5-C6 disc herniation can cause weakness in the biceps (muscles in the front of the upper arms) and wrist extensor muscles.[spine-health.com] Numbness and tingling along with pain can radiate to the thumb side of the hand. This is one of the most common levels for a cervical disc herniation to occur.[westsidemedicaltx.com]

  • Cap Myopathy

    His first symptom was foot drop at the age of three, followed by distal muscle atrophy, slight hypomimia, high-arched palate, and weakness of the neck and elbow flexors, hands[researchportal.helsinki.fi] Muscle biopsies showed myopathic features with type 1 fibre predominance in the index patient and nemaline bodies and cap-like structures in biopsies from his mother and grandmother[citeulike.org] , tibialis anterior and toe extensors.[researchportal.helsinki.fi]

  • Autosomal Recessive Inclusion Body Myopathy Type 2

    The upper limbs (shoulders, wrist extensors, hands) are affected late in the disease course. Neck flexors may be weak.[link.springer.com] Pelvic and femoral muscles are later involved, but the quadriceps muscles are spared for a long time.[link.springer.com] Facial and ocular muscles are also normally spared, along with cardiac and respiratory muscles.[link.springer.com]

  • Distal Myopathy with Early Respiratory Muscle Involvement

    , including flexors and sternocleidomastoids, involved early – Distal extremities • Weakness of wrist extensors, finger extensors, and intrinsic hand muscles impairs function[slideshare.net] : Most common Legs (Foot drop): 25% Weakness Hands Legs in most Muscles involved: Long finger extensors; Intrinsic hand; Thumb & index-finger Progression to legs: Toe & ankle[neuromuscular.wustl.edu] […] respiratory insufficiency• Myotonia usually appears by age 5. – percussion of the thenar eminence, tongue, and wrist extensor muscles – Causes a slow relaxation of hand grip[slideshare.net]

  • Familial Infantile Myasthenia

    […] intrinsic hand muscles.[sites.google.com] Characteristically, the weakness in SCCMS involves muscles of the neck (extensors) and distal regions of the upper limbs (wrists) and the finger extensors muscles and other[sites.google.com] The digit extensors (EDC) are particularly weak and atrophic .[sites.google.com]

  • Hereditary Proximal Myopathy with Early Respiratory Failure

    : Most common Legs (Foot drop): 25% Weakness Hands Legs in most Muscles involved: Long finger extensors; Intrinsic hand; Thumb & index-finger Progression to legs: Toe & ankle[neuromuscular.wustl.edu] CK Muscle Welander Dominant TIA1 2p13 40 years Hands: Extensor Normal, or Slight Myopathic Vacuoles Finnish (Tibial;.[neuromuscular.wustl.edu] Early: Distal legs Distribution Most involved: Distal legs Knee extensors flexors & Intrinsic hand muscles Least involved: Face; EOM; Forearm flexors Bulbar Dysphonia & Dysphagia[neuromuscular.wustl.edu]

  • Miyoshi Myopathy

    Certain muscles of the hands and feet (intrinsic muscles and long extensors) and certain muscles of the fingers and toes (extensors) are predominantly affected.[genpharmservices.com] : Most common Legs (Foot drop): 25% Weakness Hands Legs in most Muscles involved: Long finger extensors; Intrinsic hand; Thumb & index-finger Progression to legs: Toe & ankle[neuromuscular.wustl.edu] The progression of muscle weakness is slow. Muscles in the hands are affected first with the muscles in the legs becoming involved later on or not at all.[genpharmservices.com]

  • Distal Myopathy with Anterior Tibial Onset

    Certain muscles of the hands and feet (intrinsic muscles and long extensors) and certain muscles of the fingers and toes (extensors) are predominantly affected.[genpharmservices.com] : Most common Legs (Foot drop): 25% Weakness Hands Legs in most Muscles involved: Long finger extensors; Intrinsic hand; Thumb & index-finger Progression to legs: Toe & ankle[neuromuscular.wustl.edu] The progression of muscle weakness is slow. Muscles in the hands are affected first with the muscles in the legs becoming involved later on or not at all.[genpharmservices.com]

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