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110 Possible Causes for Brisk Deep Tendon Reflexes, Muscle Hypotonia

  • Motor Neuron Disease

    deep tendon reflexes, and absence of sensory deficits.[] Loss of lower motor neurons causes denervation atrophy of muscle, manifested by severe hypotonia, weakness, and inability to breathe.[] Symptoms may include hypotonia (severely reduced muscle tone), diminished limb movements, lack of tendon reflexes, fasciculations, tremors, swallowing and feeding difficulties[]

  • Spinocerebellar Ataxia Type 13

    Among these subjects, four had brisk deep tendon reflexes, one of whom also had mild lower extremity spasticity and a slight tremor.[] hypotonia.[] deep tendon reflexes, and loss of the sense of vibration. [2] [3] SCA13 is caused by changes or mutations in the KCNC3 gene and it is inherited in an autosomal dominant manner[]

  • Chromosome 17p13.1 Deletion Syndrome

    Studies and imaging: syringomyelia, ventricular septal defect, decreased median nerve motor nerve conduction velocity; renal abnormalities, and median nerve distal compound muscle[] […] reported. - Yuan B, et al. (2015) yuan_15_DD_discovery_cases-caseBAB2703 yuan_15_DD_discovery_cases-caseBAB6966 yuan_15_DD_discovery_cases-caseBAB8300 Infancy: infantile hypotonia[]

  • Pelizaeus-Merzbacher Disease

    Salient features on examination were impaired cognition, pendular nystagmus, axial and appendicular hypotonia with preserved antigravity movements, brisk-deep tendon reflexes[] The difficulties with movement can include spasticity (stiff or rigid muscles), hypotonia (floppiness), choreoathetosis (extra movements) and ataxia (unsteadiness/loss of[] hypotonia appears alongside and apart from neurological signs we can mention scoliosis as well.[]

  • Adult Spinal Muscular Atrophy

    All patients exhibited proximal weakness with amyotrophy, fasciculations, slow progression disease with hypoactive deep tendon reflex, except two patients with brisk reflex[] The examination may show all the characteristic findings of a lower motor neuron disease, namely absent/decreased reflexes, hypotonia, flaccid paralysis and muscle fasciculations[] Ocular and facial muscles and cerebral function are preserved. There may be deformities of limbs/joints at birth from in utero hypotonia.[]

  • Metachromatic Leukodystrophy

    Contrary to the infantile form, deep tendon reflexes are usually brisk. There is also a milder adult form.[] The first symptom is usually an unsteady gait due to muscle hypotonia.[] Some MLD Symptoms: Walking difficulties Hypotonia: low muscle tone Muscle spasms and cramps Strabismus : cross-eyed Spasticity: increased reflexes Nystagmus: involuntary eye[]

  • Spinocerebellar Ataxia Type 1

    His deep tendon reflexes were brisk, but plantars were bilaterally flexor. The sensory system was normal. On cerebellar examination, there was a mild dysarthria.[] […] twitch 0002380 Gait imbalance Abnormality of balance Abnormality of equilibrium Imbalanced walk [ more ] 0002141 Generalized hypotonia Decreased muscle tone Low muscle tone[] , where muscles atrophy.[]

  • Globoid Cell Leukodystrophy

    On examination, she had of grade III coma, hypertonicity in all four limbs with bilaterally up-going plantars and brisk deep tendon reflexes.[]

  • Dysequilibrium Syndrome

    Deep tendon reflexes in the lower extremities tend to be brisk. Microcephaly (-3 to -4 SD below the mean) has been reported in a few affected individuals. Life span.[] Clinical features include cerebellar ataxia, early-onset cataracts, mild to severe cognitive impairment, hypotonia, and muscle weakness.[] Clinical features include severe, progressive neurodegenerative disorder characterized by normal development until age one year, followed by onset of ataxia, muscle hypotonia[]

  • Weaver Syndrome

    Neurological examination showed increased tone bilaterally in the lower limbs, with upward plantar reflexes and symmetrical but brisk deep tendon reflexes.[] Other common symptoms include hypertonia (increased muscle tone, tight muscles) as well as hypotonia (decreased muscle tone, "floppy" muscles) and a hoarse low-pitched cry[] Low or weak muscle tone 0001252 Overlapping toe Overlapping toes Overriding toes [ more ] 0001845 Prominent fingertip pads Prominent finger pads 0001212 Radial deviation[]

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