From HPO
Hydronephrosis- MedGen UID:
- 42531
- •Concept ID:
- C0020295
- •
- Disease or Syndrome
Severe distention of the kidney with dilation of the renal pelvis and calices.
Hallux valgus- MedGen UID:
- 5416
- •Concept ID:
- C0018536
- •
- Anatomical Abnormality
Lateral deviation of the great toe (i.e., in the direction of the little toe).
Tapered finger- MedGen UID:
- 98098
- •Concept ID:
- C0426886
- •
- Finding
The gradual reduction in girth of the finger from proximal to distal.
Limb hypertonia- MedGen UID:
- 333083
- •Concept ID:
- C1838391
- •
- Finding
Patent ductus arteriosus- MedGen UID:
- 4415
- •Concept ID:
- C0013274
- •
- Congenital Abnormality
In utero, the ductus arteriosus (DA) serves to divert ventricular output away from the lungs and toward the placenta by connecting the main pulmonary artery to the descending aorta. A patent ductus arteriosus (PDA) in the first 3 days of life is a physiologic shunt in healthy term and preterm newborn infants, and normally is substantially closed within about 24 hours after bith and completely closed after about three weeks. Failure of physiologcal closure is referred to a persistent or patent ductus arteriosus (PDA). Depending on the degree of left-to-right shunting, PDA can have clinical consequences.
Fetal growth restriction- MedGen UID:
- 4693
- •Concept ID:
- C0015934
- •
- Pathologic Function
An abnormal restriction of fetal growth with fetal weight below the tenth percentile for gestational age.
Small for gestational age- MedGen UID:
- 65920
- •Concept ID:
- C0235991
- •
- Finding
Smaller than normal size according to sex and gestational age related norms, defined as a weight below the 10th percentile for the gestational age.
Short stature- MedGen UID:
- 87607
- •Concept ID:
- C0349588
- •
- Finding
A height below that which is expected according to age and gender norms. Although there is no universally accepted definition of short stature, many refer to "short stature" as height more than 2 standard deviations below the mean for age and gender (or below the 3rd percentile for age and gender dependent norms).
Birth length less than 3rd percentile- MedGen UID:
- 340924
- •Concept ID:
- C1855650
- •
- Finding
Failure to thrive in infancy- MedGen UID:
- 358083
- •Concept ID:
- C1867873
- •
- Finding
Feeding difficulties- MedGen UID:
- 65429
- •Concept ID:
- C0232466
- •
- Finding
Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it.
Feeding difficulties in infancy- MedGen UID:
- 436211
- •Concept ID:
- C2674608
- •
- Finding
Impaired feeding performance of an infant as manifested by difficulties such as weak and ineffective sucking, brief bursts of sucking, and falling asleep during sucking. There may be difficulties with chewing or maintaining attention.
Macrotia- MedGen UID:
- 488785
- •Concept ID:
- C0152421
- •
- Congenital Abnormality
Median longitudinal ear length greater than two standard deviations above the mean and median ear width greater than two standard deviations above the mean (objective); or, apparent increase in length and width of the pinna (subjective).
Low-set ears- MedGen UID:
- 65980
- •Concept ID:
- C0239234
- •
- Congenital Abnormality
Upper insertion of the ear to the scalp below an imaginary horizontal line drawn between the inner canthi of the eye and extending posteriorly to the ear.
Thickened helices- MedGen UID:
- 325240
- •Concept ID:
- C1837732
- •
- Finding
Increased thickness of the helix of the ear.
Autism- MedGen UID:
- 13966
- •Concept ID:
- C0004352
- •
- Mental or Behavioral Dysfunction
Autism, the prototypic pervasive developmental disorder (PDD), is usually apparent by 3 years of age. It is characterized by a triad of limited or absent verbal communication, a lack of reciprocal social interaction or responsiveness, and restricted, stereotypic, and ritualized patterns of interests and behavior (Bailey et al., 1996; Risch et al., 1999). 'Autism spectrum disorder,' sometimes referred to as ASD, is a broader phenotype encompassing the less severe disorders Asperger syndrome (see ASPG1; 608638) and pervasive developmental disorder, not otherwise specified (PDD-NOS). 'Broad autism phenotype' includes individuals with some symptoms of autism, but who do not meet the full criteria for autism or other disorders. Mental retardation coexists in approximately two-thirds of individuals with ASD, except for Asperger syndrome, in which mental retardation is conspicuously absent (Jones et al., 2008). Genetic studies in autism often include family members with these less stringent diagnoses (Schellenberg et al., 2006).
Levy et al. (2009) provided a general review of autism and autism spectrum disorder, including epidemiology, characteristics of the disorder, diagnosis, neurobiologic hypotheses for the etiology, genetics, and treatment options.
Genetic Heterogeneity of Autism
Autism is considered to be a complex multifactorial disorder involving many genes. Accordingly, several loci have been identified, some or all of which may contribute to the phenotype. Included in this entry is AUTS1, which has been mapped to chromosome 7q22.
Other susceptibility loci include AUTS3 (608049), which maps to chromosome 13q14; AUTS4 (608636), which maps to chromosome 15q11; AUTS6 (609378), which maps to chromosome 17q11; AUTS7 (610676), which maps to chromosome 17q21; AUTS8 (607373), which maps to chromosome 3q25-q27; AUTS9 (611015), which maps to chromosome 7q31; AUTS10 (611016), which maps to chromosome 7q36; AUTS11 (610836), which maps to chromosome 1q41; AUTS12 (610838), which maps to chromosome 21p13-q11; AUTS13 (610908), which maps to chromosome 12q14; AUTS14A (611913), which has been found in patients with a deletion of a region of 16p11.2; AUTS14B (614671), which has been found in patients with a duplication of a region of 16p11.2; AUTS15 (612100), associated with mutation in the CNTNAP2 gene (604569) on chromosome 7q35-q36; AUTS16 (613410), associated with mutation in the SLC9A9 gene (608396) on chromosome 3q24; AUTS17 (613436), associated with mutation in the SHANK2 gene (603290) on chromosome 11q13; AUTS18 (615032), associated with mutation in the CHD8 gene (610528) on chromosome 14q11; AUTS19 (615091), associated with mutation in the EIF4E gene (133440) on chromosome 4q23; and AUTS20 (618830), associated with mutation in the NLGN1 gene (600568) on chromosome 3q26. (NOTE: the symbol 'AUTS2' has been used to refer to a gene on chromosome 7q11 (KIAA0442; 607270) and therefore is not used as a part of this autism locus series.)
There are several X-linked forms of autism susceptibility: AUTSX1 (300425), associated with mutations in the NLGN3 gene (300336); AUTSX2 (300495), associated with mutations in NLGN4 (300427); AUTSX3 (300496), associated with mutations in MECP2 (300005); AUTSX4 (300830), associated with variation in the region on chromosome Xp22.11 containing the PTCHD1 gene (300828); AUTSX5 (300847), associated with mutations in the RPL10 gene (312173); and AUTSX6 (300872), associated with mutation in the TMLHE gene (300777).
A locus on chromosome 2q (606053) associated with a phenotype including intellectual disability and speech deficits was formerly designated AUTS5.
Folstein and Rosen-Sheidley (2001) reviewed the genetics of autism.
Cerebellar ataxia- MedGen UID:
- 849
- •Concept ID:
- C0007758
- •
- Disease or Syndrome
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- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).
Febrile seizure (within the age range of 3 months to 6 years)- MedGen UID:
- 3232
- •Concept ID:
- C0009952
- •
- Disease or Syndrome
A febrile seizure is any type of seizure (most often a generalized tonic-clonic seizure) occurring with fever (at least 38 degrees Celsius) but in the absence of central nervous system infection, severe metabolic disturbance or other alternative precipitant in children between the ages of 3 months and 6 years.
Seizure- MedGen UID:
- 20693
- •Concept ID:
- C0036572
- •
- Sign or Symptom
A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.
Intellectual disability, severe- MedGen UID:
- 48638
- •Concept ID:
- C0036857
- •
- Mental or Behavioral Dysfunction
Severe mental retardation is defined as an intelligence quotient (IQ) in the range of 20-34.
Motor stereotypies- MedGen UID:
- 21318
- •Concept ID:
- C0038271
- •
- Individual Behavior
Use of the same abnormal action in response to certain triggers or at random. They may be used as a way to regulate one's internal state but must otherwise have no apparent functional purpose.
Hyperactivity- MedGen UID:
- 98406
- •Concept ID:
- C0424295
- •
- Finding
Hyperactivity is a condition characterized by constant and unusually high levels of activity, even in situations where it is deemed inappropriate.
Inappropriate laughter- MedGen UID:
- 98407
- •Concept ID:
- C0424304
- •
- Finding
Laughing that may be excessive and/or inappropriate in context (e.g., laughing at a funeral while others are crying).
Delayed speech and language development- MedGen UID:
- 105318
- •Concept ID:
- C0454644
- •
- Finding
A degree of language development that is significantly below the norm for a child of a specified age.
Bilateral tonic-clonic seizure- MedGen UID:
- 141670
- •Concept ID:
- C0494475
- •
- Sign or Symptom
A bilateral tonic-clonic seizure is a seizure defined by a tonic (bilateral increased tone, lasting seconds to minutes) and then a clonic (bilateral sustained rhythmic jerking) phase.
Incoordination- MedGen UID:
- 141714
- •Concept ID:
- C0520966
- •
- Finding
Global developmental delay- MedGen UID:
- 107838
- •Concept ID:
- C0557874
- •
- Finding
A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.
Stereotypical hand wringing- MedGen UID:
- 646835
- •Concept ID:
- C0562479
- •
- Finding
Habitual clasping and wringing of the hands in the middle of the body, similar to a hand-washing movement.
Gait disturbance- MedGen UID:
- 107895
- •Concept ID:
- C0575081
- •
- Finding
The term gait disturbance can refer to any disruption of the ability to walk.
Tongue thrusting- MedGen UID:
- 473491
- •Concept ID:
- C1829460
- •
- Finding
Pressing forward of the tongue in the mouth, a retained motoric habit from infantile swallowing patterns
Severe global developmental delay- MedGen UID:
- 332436
- •Concept ID:
- C1837397
- •
- Finding
A severe delay in the achievement of motor or mental milestones in the domains of development of a child.
Happy demeanor- MedGen UID:
- 344654
- •Concept ID:
- C1856115
- •
- Finding
A conspicuously happy disposition, characterized by frequent smiling and laughing, which may be contextually inappropriate or unrelated to the situation.
Ventriculomegaly- MedGen UID:
- 480553
- •Concept ID:
- C3278923
- •
- Finding
An increase in size of the ventricular system of the brain.
Cerebral cortical atrophy- MedGen UID:
- 1646740
- •Concept ID:
- C4551583
- •
- Disease or Syndrome
Atrophy of the cortex of the cerebrum.
Thin corpus callosum- MedGen UID:
- 1785336
- •Concept ID:
- C5441562
- •
- Anatomical Abnormality
An abnormally thin corpus callous, due to atrophy, hypoplasia or agenesis. This term is intended to be used in situations where it is not known if thinning of the corpus callosum (for instance, as visualized by magnetic resonance tomography) is due to abnormal development (e.g. a leukodystrophy) or atrophy following normal development (e.g. neurodegeneration).
Micrognathia- MedGen UID:
- 44428
- •Concept ID:
- C0025990
- •
- Congenital Abnormality
Developmental hypoplasia of the mandible.
Secondary microcephaly- MedGen UID:
- 608952
- •Concept ID:
- C0431352
- •
- Finding
Head circumference which falls below 2 standard deviations below the mean for age and gender because of insufficient head growth after birth.
Enlarged cisterna magna- MedGen UID:
- 344031
- •Concept ID:
- C1853377
- •
- Finding
Increase in size of the cisterna magna, one of three principal openings in the subarachnoid space between the arachnoid and pia mater, located between the cerebellum and the dorsal surface of the medulla oblongata.
Prominent occiput- MedGen UID:
- 381255
- •Concept ID:
- C1853737
- •
- Finding
Increased convexity of the occiput (posterior part of the skull).
Generalized hypotonia- MedGen UID:
- 346841
- •Concept ID:
- C1858120
- •
- Finding
Generalized muscular hypotonia (abnormally low muscle tone).
Pectus excavatum- MedGen UID:
- 781174
- •Concept ID:
- C2051831
- •
- Finding
A defect of the chest wall characterized by a depression of the sternum, giving the chest ("pectus") a caved-in ("excavatum") appearance.
Primary microcephaly- MedGen UID:
- 383046
- •Concept ID:
- C2677180
- •
- Finding
Head circumference below 2 standard deviations below the mean for age and gender at birth.
Microcephaly- MedGen UID:
- 1644158
- •Concept ID:
- C4551563
- •
- Finding
Head circumference below 2 standard deviations below the mean for age and gender.
Recurrent infections- MedGen UID:
- 65998
- •Concept ID:
- C0239998
- •
- Finding
Increased susceptibility to infections.
Recurrent otitis media- MedGen UID:
- 155436
- •Concept ID:
- C0747085
- •
- Disease or Syndrome
Increased susceptibility to otitis media, as manifested by recurrent episodes of otitis media.
Bulbous nose- MedGen UID:
- 66013
- •Concept ID:
- C0240543
- •
- Finding
Increased volume and globular shape of the anteroinferior aspect of the nose.
Downslanted palpebral fissures- MedGen UID:
- 98391
- •Concept ID:
- C0423110
- •
- Finding
The palpebral fissure inclination is more than two standard deviations below the mean.
Smooth philtrum- MedGen UID:
- 222980
- •Concept ID:
- C1142533
- •
- Finding
Flat skin surface, with no ridge formation in the central region of the upper lip between the nasal base and upper vermilion border.
Long face- MedGen UID:
- 324419
- •Concept ID:
- C1836047
- •
- Finding
Facial height (length) is more than 2 standard deviations above the mean (objective); or, an apparent increase in the height (length) of the face (subjective).
Thick lower lip vermilion- MedGen UID:
- 326567
- •Concept ID:
- C1839739
- •
- Finding
Increased thickness of the lower lip, leading to a prominent appearance of the lower lip. The height of the vermilion of the lower lip in the midline is more than 2 SD above the mean. Alternatively, an apparently increased height of the vermilion of the lower lip in the frontal view (subjective).
Narrow forehead- MedGen UID:
- 326956
- •Concept ID:
- C1839758
- •
- Finding
Width of the forehead or distance between the frontotemporales is more than two standard deviations below the mean (objective); or apparently narrow intertemporal region (subjective).
Widely spaced teeth- MedGen UID:
- 337093
- •Concept ID:
- C1844813
- •
- Finding
Increased spaces (diastemata) between most of the teeth in the same dental arch.
Prominent nasal bridge- MedGen UID:
- 343051
- •Concept ID:
- C1854113
- •
- Finding
Anterior positioning of the nasal root in comparison to the usual positioning for age.
Thin upper lip vermilion- MedGen UID:
- 355352
- •Concept ID:
- C1865017
- •
- Finding
Height of the vermilion of the upper lip in the midline more than 2 SD below the mean. Alternatively, an apparently reduced height of the vermilion of the upper lip in the frontal view (subjective).
Downturned corners of mouth- MedGen UID:
- 356471
- •Concept ID:
- C1866195
- •
- Anatomical Abnormality
A morphological abnormality of the mouth in which the angle of the mouth is downturned. The oral commissures are positioned inferior to the midline labial fissure.
Sacral dimple- MedGen UID:
- 98428
- •Concept ID:
- C0426848
- •
- Finding
A cutaneous indentation resulting from tethering of the skin to underlying structures (bone) of the intergluteal cleft.
Optic atrophy- MedGen UID:
- 18180
- •Concept ID:
- C0029124
- •
- Disease or Syndrome
Atrophy of the optic nerve. Optic atrophy results from the death of the retinal ganglion cell axons that comprise the optic nerve and manifesting as a pale optic nerve on fundoscopy.
Deeply set eye- MedGen UID:
- 473112
- •Concept ID:
- C0423224
- •
- Finding
An eye that is more deeply recessed into the plane of the face than is typical.
Hypotelorism- MedGen UID:
- 96107
- •Concept ID:
- C0424711
- •
- Finding
Interpupillary distance less than 2 SD below the mean (alternatively, the appearance of an decreased interpupillary distance or closely spaced eyes).
- Abnormality of head or neck
- Abnormality of limbs
- Abnormality of the cardiovascular system
- Abnormality of the digestive system
- Abnormality of the eye
- Abnormality of the genitourinary system
- Abnormality of the immune system
- Abnormality of the integument
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system
- Ear malformation
- Growth abnormality