| HP:0000006 | Autosomal dominant inheritance | "A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in heterozygotes. In the context of medical genetics, an autosomal dominant disorder is caused when a single copy of the mutant allele is present. Males and females are affected equally, and can both transmit the disorder with a risk of 50% for each child of inheriting the mutant allele." [HPO:curators] |
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| HP:0000218 | High palate | "Height of the palate more than 2 SD above the mean (objective) or palatal height at the level of the first permanent molar more than twice the height of the teeth (subjective)." [pmid:19125428] |
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| HP:0000219 | Thin upper lip | |
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| HP:0000252 | Microcephaly | "Microcephaly is a neurodevelopmental disorder in which the circumference of the head is more than two standard deviations smaller than the age- and gender-dependent norm." [HPO:curators] |
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| HP:0000286 | Epicanthus | "An epicanthal fold is a semilunar fold of skin that extends from the upper eyelid across the medial canthal area to the lower eyelid." [HPO:curators] |
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| HP:0000316 | Hypertelorism | |
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| HP:0000347 | Mandibular hypoplasia | "Underdevelopment of the mandible." [HPO:curators] |
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| HP:0000369 | Low-set ears | "Low-set ears are defined to be set below an arbitrary line drawn between the lateral canthus of the eye and the occipital protruberance." [HPO:curators] |
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| HP:0000431 | Broad nasal bridge | "Increased horizontal dimension of the upper, bony part of the nose." [HPO:curators] |
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| HP:0000463 | Nares, anteverted | "Anteriorly-facing nostrils viewed with the head in the Frankfurt horizontal and the eyes of the observer level with the eyes of the subject." [pmid:19152422] |
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| HP:0000508 | Ptosis | "Drooping of the eyelid." [HPO:curators] |
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| HP:0000664 | Synophrys | "Fusion of the left and right `eyebrow` (FMA:54237)." [HPO:probinson] |
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| HP:0000750 | Impaired language development | |
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| HP:0001156 | Brachydactyly | |
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| HP:0001249 | Mental retardation | |
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| HP:0001263 | Developmental retardation | "A delay in the achievement of motor or mental milestones manifested prior to age 18 and generally associated with lifelong mental and/or physical impairments." [HPO:curators] |
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| HP:0001290 | Generalized hypotonia | "Generalized muscular hypotonia (abnormally low muscle tone)." [HPO:curators] |
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| HP:0001302 | Pachygyria | "A congenital abnormality of the cerebral hemisphere chacterized by unusually thick gyrations (convolutions) of the cerebral cortex." [HPO:curators] |
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| HP:0001382 | Joint hypermobility | "The ability of a joint to move beyond its normal range of motion." [HPO:curators] |
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| HP:0001508 | Failure to thrive | |
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| HP:0002019 | Constipation | |
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| HP:0002553 | Arched eyebrows | |
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| HP:0002650 | Scoliosis | "The presence of an abnormal lateral curvature of the spine." [HPO:curators] |
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| HP:0002720 | Decreased IgA | |
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| HP:0003812 | Phenotypic variability | |
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| HP:0004315 | Decreased IgG level | "An abnormally decreased level of immunoglobulin G in blood." [HPO:probinson] |
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| HP:0007018 | Attention deficit hyperactivity disorder | "Attention deficit hyperactivity disorder (ADHD) manifests at age 2-3 years or by first grade at the latest. The main symptoms are distractibility, impulsivity, hyperactivity, and often trouble organizing tasks and projects, difficulty going to sleep, and social problems from being aggressive, loud, or impatient." [HPO:curators] |
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| HP:0009879 | Cortical gyral simplification | "An abnormal reduction of the number and complexity of the pattern of gyrations of the cerebral cortex." [HPO:curators] |
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| HP:0010819 | Atonic seizures | "A type of `seizure` (HP:0001250) characterized by a suddenloss of musle tone. Usually, consciousness is retained. In an atonic seizure, the eyelids may droop, the head may nod, and the person may drop things and fall to the ground." [HPO:probinson] |
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| HP:0011968 | Feeding difficulties | "Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it." [ISCA:eriggs] |
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| HP:0030084 | Clinodactyly | "An angulation of a digit at an interphalangeal joint in the plane of the palm (finger) or sole (toe)." [pmid:16252026] |
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