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Items: 4

1.

Spondylometaepiphyseal dysplasia short limb-hand type

MedGen UID:
338595
Concept ID:
C1849011
Disease or Syndrome
2.

Pick disease

The clinical manifestations of MAPT-related disorders (MAPT-related tauopathies) are most typically those of frontotemporal dementia (FTDP-17), but also include progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), mild late-onset parkinsonism, and dementia with epilepsy. Clinical presentation of frontotemporal dementia (FTD) is variable: some present with slowly progressive behavioral changes, language disturbances, and/or extrapyramidal signs, whereas others present with rigidity, bradykinesia, supranuclear palsy, and saccadic eye movement disorders. Onset is usually between ages 40 and 60 years, but may be earlier or later. The disease progresses over a few years into profound dementia with mutism. PSP is characterized by progressive vertical gaze palsy in combination with a prominent loss of balance at early stages of the disease. With progression, axial rigidity, dysarthria, and dysphagia become prominent, often in combination with a frontal dysexecutive syndrome. CBD is a progressive neurodegenerative disorder which affects both the frontoparietal cortex and the basal ganglia, resulting in a mild to moderate dementia in combination with asymmetric parkinsonism, ideomotor apraxia, aphasia, and an alien-hand syndrome. [from GeneReviews]

MedGen UID:
116020
Concept ID:
C0236642
Disease or Syndrome
3.

Niemann-Pick disease, type C

Niemann-Pick disease type C (NPC) is a lipid storage disease that can present in infants, children, or adults. Neonates can present with ascites and severe liver disease from infiltration of the liver and/or respiratory failure from infiltration of the lungs. Other infants, without liver or pulmonary disease, have hypotonia and developmental delay. The classic presentation occurs in mid-to-late childhood with the insidious onset of ataxia, vertical supranuclear gaze palsy (VSGP), and dementia. Dystonia and seizures are common. Dysarthria and dysphagia eventually become disabling, making oral feeding impossible; death usually occurs in the late second or third decade from aspiration pneumonia. Adults are more likely to present with dementia or psychiatric symptoms. [from GeneReviews]

MedGen UID:
67399
Concept ID:
C0220756
Disease or Syndrome
4.

Sphingomyelin/cholesterol lipidosis

Acid sphingomyelinase (ASM) deficiency has been categorized in the past as either neuronopathic (Niemann-Pick disease type A [NPD-A]), with death in early childhood, or non-neuronopathic (Niemann-Pick disease type B [NPD-B]). While forms intermediate to these two extremes occur, all ASM deficiency that is not NPD-A is designated in this review as NPD-B, despite its wide range of manifestations and severity. The first symptom in NPD-A is hepatosplenomegaly, usually noted by age three months; over time the liver and spleen become massive. Psychomotor development progresses no further than the 12-month level, after which neurologic deterioration is relentless. A classic cherry-red spot of the macula of the retina, which may not be present in the first few months, is eventually present in all affected children. Interstitial lung disease caused by storage of sphingomyelin in pulmonary macrophages results in frequent respiratory infections and often respiratory failure. Most children succumb before the third year. NPD type B, later in onset and milder in manifestations than NPD type A, is characterized by hepatosplenomegaly with progressive hypersplenism and stable liver dysfunction, gradual deterioration in pulmonary function, osteopenia, and atherogenic lipid profile. Progressive and/or clinically significant neurologic manifestations occur infrequently. Survival to adulthood can occur. [from GeneReviews]

MedGen UID:
10348
Concept ID:
C0028064
Disease or Syndrome
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