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Items: 3

1.

Cold agglutinin disease

Cold agglutinin disease is a type of autoimmune hemolytic anemia (see this term) defined by the presence of cold autoantibodies (autoantibodies which are active at temperatures below 30°C). [from ORDO]

MedGen UID:
688249
Concept ID:
C1264008
Disease or Syndrome
2.

Childhood apraxia of speech

All FOXP2-related speech and language disorders, regardless of the underlying genetic alteration, have a core phenotype: childhood apraxia of speech (CAS), a disorder of speech motor programming or planning that affects the production, sequencing, timing, and stress of sounds, syllables, and words. All individuals with CAS – whether caused by an alteration of FOXP2 or of an unknown cause – have difficulties in automatically and accurately sequencing speech sounds into syllables, syllables into words, and words into sentences with the correct prosody. Additional findings in FOXP2-related speech and language disorders can include oral motor dyspraxia (difficulty planning or programming oral movements on command); dysarthria (a neuromuscular-based speech disorder that may affect nasal resonance, voice quality, prosody, and breath support for speech); moderate to severe receptive and expressive language disorder; and reading and spelling impairments. The underlying genetic cause of FOXP2-related speech and language disorders is either disruption of FOXP2 only (referred to in this GeneReview as FOXP2-only-related speech and language disorder) or large copy number variants (i.e., contiguous gene deletions), structural variants (i.e., chromosome translocation or inversion), or maternal uniparental disomy of chromosome 7 (UPD7) involving FOXP2 (here referred to as FOXP2-plus-related speech and language disorders). The genetic alteration determines if only speech and language problems are present (FOXP2-only-related speech and language disorder) or if more global developmental and behavioral issues are likely to be present as well (FOXP2-plus-related speech and language disorder). In FOXP2-only-related disorders, nonverbal (performance) IQ is typically more preserved compared to verbal IQ. Fine motor skills may be impaired (e.g., buttoning clothes, tying shoelaces), yet gross motor skills are normal. Autistic features and dysmorphic findings have been reported in a few affected individuals. In FOXP2-plus-related disorders oral motor deficits, global developmental delay, and autism spectrum disorder are common. [from GeneReviews]

MedGen UID:
152917
Concept ID:
C0750927
Mental or Behavioral Dysfunction
3.

Potassium-aggravated myotonia

In a report on the 37th ENMC Workshop, Rudel and Lehmann-Horn (1997) stated that the sodium channelopathies can be divided into 3 different forms: paramyotonia, potassium-aggravated myotonia, and periodic paralysis. Potassium-aggravated myotonia includes mild myotonia fluctuans, severe myotonia permanens, and acetazolamide-responsive myotonia. [from OMIM]

MedGen UID:
444151
Concept ID:
C2931826
Disease or Syndrome
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