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Items: 17

1.

Spinocerebellar ataxia 6

Spinocerebellar ataxia type 6 (SCA6) is characterized by adult-onset, slowly progressive cerebellar ataxia, dysarthria, and nystagmus. Mean age of onset is 43 to 52 years. Initial symptoms are gait unsteadiness, stumbling, and imbalance (in ~90%) and dysarthria (in ~10%). Eventually all persons have gait ataxia, upper-limb incoordination, intention tremor, and dysarthria. Dysphagia and choking are common. Visual disturbances may result from diplopia, difficulty fixating on moving objects, horizontal gaze-evoked nystagmus, and vertical nystagmus. Hyperreflexia and extensor plantar responses occur in up to 40%-50%. Basal ganglia signs, including dystonia and blepharospasm, occur in up to 25%. Mentation is generally preserved. [from GeneReviews]

MedGen UID:
148458
Concept ID:
C0752124
Disease or Syndrome
2.

Ataxia

A type of ataxia characterized by the impairment of the ability to smoothly perform the elements of a voluntary movement in the appropriate order and speed. With dyssynergia, a voluntary movement appears broken down into its component parts. [from HPO]

MedGen UID:
13945
Concept ID:
C0004134
Sign or Symptom
3.

Ataxia

Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- oder overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly). [from HPO]

MedGen UID:
504767
Concept ID:
CN001146
Finding
4.

Spondylometaepiphyseal dysplasia short limb-hand type

MedGen UID:
338595
Concept ID:
C1849011
Disease or Syndrome
5.

Spinocerebellar atrophy

Atrophy affecting the cerebellum and the spinocerebellar tracts of the spinal cord. [from HPO]

MedGen UID:
39733
Concept ID:
C0087012
Disease or Syndrome
6.

Leukemia

A cancer of the blood and bone marrow characterized by an abnormal proliferation of leukocytes. [from HPO]

MedGen UID:
505002
Concept ID:
CN001727
Finding
7.

Nicolaides-Baraitser syndrome

Nicolaides-Baraitser syndrome (NCBRS) is characterized by sparse scalp hair, prominence of the inter-phalangeal joints and distal phalanges due to decreased subcutaneous fat, characteristic coarse facial features, microcephaly, seizures, and developmental delay/intellectual disability. Seizures are of various types and can be difficult to manage. Developmental delay/intellectual disability (ID) is severe in nearly a half, moderate in a third, and mild in the remainder. Nearly a third never develop speech or language skills. [from NCBI]

MedGen UID:
220983
Concept ID:
C1303073
Disease or Syndrome
8.

Microcephaly, normal intelligence and immunodeficiency

Nijmegen breakage syndrome (NBS) is characterized by progressive microcephaly, intrauterine growth retardation and short stature, recurrent sinopulmonary infections, an increased risk for cancer, and premature ovarian failure in females. Developmental milestones are attained at the usual time during the first year; however, borderline delays in development and hyperactivity may be observed in early childhood. Intellectual abilities tend to decline over time and most children tested after age seven years have mild to moderate intellectual disability. Recurrent pneumonia and bronchitis may result in respiratory failure and early death. Approximately 40% of affected individuals have developed malignancies before age 20 years, with the risk being highest for T-cell (55%) and B-cell lymphomas (45%). Other tumors include T-cell lymphoma and solid tumors (e.g., medulloblastoma, glioma, and rhabdomyosarcoma). Note, however, that much of what is reported about NBS is based on individuals who are homozygous for the single most common Eastern European pathogenic variant, 657_661del5. [from GeneReviews]

MedGen UID:
140771
Concept ID:
C0398791
Congenital Abnormality; Disease or Syndrome
9.

Limb ataxia

A kind of ataxia that affects movements of the extremities. [from HPO]

MedGen UID:
196692
Concept ID:
C0750937
Finding; Finding
10.

Inborn genetic diseases

Diseases that are caused by genetic mutations present during embryo or fetal development, although they may be observed later in life. The mutations may be inherited from a parent's genome or they may be acquired in utero. [from MeSH]

MedGen UID:
181981
Concept ID:
C0950123
Disease or Syndrome
11.

Asterixis

A clinical sign indicating a lapse of posture and is usually manifest by a bilateral flapping tremor at the wrist, metacarpophalangeal, and hip joints. [from HPO]

MedGen UID:
115916
Concept ID:
C0232766
Sign or Symptom
12.

Hemiballismus

Hemiballismus is a rare movement disorder that is caused primarily by damage to various areas in the basal ganglia. Hemiballismus is usually characterized by involuntary flinging motions of the extremities. The movements are often violent and have wide amplitudes of motion. They are continuous and random and can involve proximal and/or distal muscles on one side of the body, while some cases even include the facial muscles. The more a patient is active, the more the movements increase. With relaxation comes a decrease in movements. [from HPO]

MedGen UID:
67443
Concept ID:
C0221169
Disease or Syndrome; Finding
13.

Myelopathy

Your spinal cord is a bundle of nerves that runs down the middle of your back. It carries signals back and forth between your body and your brain. It is protected by your vertebrae, which are the bone disks that make up your spine. If you have an accident that damages the vertebrae or other parts of the spine, this can also injure the spinal cord. Other spinal cord problems include. - Tumors. - Infections such as meningitis and polio. - Inflammatory diseases. - Autoimmune diseases . - Degenerative diseases such as amyotrophic lateral sclerosis and spinal muscular atrophy. Symptoms vary but might include pain, numbness, loss of sensation and muscle weakness. These symptoms can occur around the spinal cord, and also in other areas such as your arms and legs. Treatments often include medicines and surgery. .  [from MedlinePlus]

MedGen UID:
11550
Concept ID:
C0037928
Disease or Syndrome
14.

Dyskinesia

Abnormal involuntary movements which primarily affect the extremities, trunk, or jaw that occur as a manifestation of an underlying disease process. Conditions which feature recurrent or persistent episodes of dyskinesia as a primary manifestation of disease may be referred to as dyskinesia syndromes (see MOVEMENT DISORDERS). Dyskinesias are also a relatively common manifestation of BASAL GANGLIA DISEASES. [from MeSH]

MedGen UID:
8514
Concept ID:
C0013384
Disease or Syndrome
15.

Disorder of the central nervous system

A structural abnormality of the central nervous system. [from HPO]

MedGen UID:
3306
Concept ID:
C0007682
Disease or Syndrome
16.

Hereditary ataxia

The hereditary ataxias are a group of genetic disorders characterized by slowly progressive incoordination of gait and often associated with poor coordination of hands, speech, and eye movements. Frequently, atrophy of the cerebellum occurs. In this GeneReview the hereditary ataxias are categorized by mode of inheritance and gene (or chromosome locus) in which pathogenic variants occur. [from GeneReviews]

MedGen UID:
2478
Concept ID:
C0004138
Disease or Syndrome
17.

Spinocerebellar ataxia 11

Spinocerebellar ataxia type 11 (SCA11) is characterized by progressive cerebellar ataxia and abnormal eye signs (jerky pursuit, horizontal and vertical nystagmus). Pyramidal features, peripheral neuropathy, and dystonia are seen on occasion. Four families have been reported to date: one each from the UK, France, Germany, and Pakistan. In them, age of onset ranged from the early teens to the mid 20s. Life span is normal. [from GeneReviews]

MedGen UID:
346799
Concept ID:
C1858351
Disease or Syndrome
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