Phenotypes associated with the disease short stature, facial dysmorphism, and skeletal anomalies with or without cardiac anomalies 1 (OMIM:617877):
- Floppy infant (HP:0008947): Floppiness/hypotonia is defined as reduced resistance to passive movement of joints. Physical examination of floppy/hypotonic infants shows head lag, lack of shoulder and elbow muscle contraction on traction response, inability to tighten the shoulder girdle muscles (or slipping through) when held under the axillae, scarf sign (when the arm is pulled to the opposite side, the arm wraps around the neck with the elbow crossing midline), hyperdorsiflexion of the feet, easy apposition of the thumb against the forearm, feet touching the cheek with ease and without discomfort, frog leg position, and inverted U sign on ventral suspension (head, arms, and legs hanging down without elbow or knee flexion and the trunk rounded in a dome shape). Evidence: IEA. Frequency: Very rare (HP:0040284). (OMIM:617877)
- Narrow forehead (HP:0000341): 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). Evidence: IEA. (OMIM:617877)
- Long philtrum (HP:0000343): Distance between nasal base and midline upper lip vermilion border more than 2 SD above the mean. Alternatively, an apparently increased distance between nasal base and midline upper lip vermilion border. Evidence: PCS. Frequency: 12/12. (PMID:29198724)
- Paroxysmal supraventricular tachycardia (HP:0004763): An episodic form of supraventricular tachycardia with abrupt onset and termination. Evidence: IEA. (OMIM:617877)
- Anteverted nares (HP:0000463): Anteriorly-facing nostrils viewed with the head in the Frankfurt horizontal and the eyes of the observer level with the eyes of the subject. This gives the appearance of an upturned nose (upturned nasal tip). Evidence: PCS. Frequency: 12/12. (PMID:29198724)
- Short stature (HP:0004322): 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). Evidence: PCS. Frequency: 8/11. (PMID:29198724)
- Spina bifida occulta (HP:0003298): The closed form of spina bifida with incomplete closure of a vertebral body with intact overlying skin. Evidence: IEA. (OMIM:617877)
- Short nose (HP:0003196): Distance from nasion to subnasale more than two standard deviations below the mean, or alternatively, an apparently decreased length from the nasal root to the nasal tip. Evidence: PCS. Frequency: 12/12. (PMID:29198724)
- Hypotonia (HP:0001252): Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist. Evidence: PCS. Frequency: 3/11. (PMID:29198724)
- Short 5th metacarpal (HP:0010047): Short fifth metacarpal bone. Evidence: IEA. (OMIM:617877)
- Arrhythmia (HP:0011675): Any cardiac rhythm other than the normal sinus rhythm. Such a rhythm may be either of sinus or ectopic origin and either regular or irregular. An arrhythmia may be due to a disturbance in impulse formation or conduction or both. Evidence: PCS. Frequency: 3/9. (PMID:29198724)
- Anterior open-bite malocclusion (HP:0009102): Anterior open bite is a malocclusion characterized by a gap between the anterior teeth (incisors), that is, by a deficiency in the normal vertical overlap between antagonist incisal edges when the posterior teeth are in occlusion. Evidence: PCS. Frequency: 5/10. (PMID:29198724)
- Perimembranous ventricular septal defect (HP:0011682): A ventricular septal defect that is confluent with and involves the membranous septum and is bordered by an atrioventricular valve, not including the type 3 VSDs. Evidence: IEA. (OMIM:617877)
- Osteopenia (HP:0000938): Osteopenia is a term to define bone density that is not normal but also not as low as osteoporosis. By definition from the World Health Organization osteopenia is defined by bone densitometry as a T score -1 to -2.5. Evidence: PCS. Frequency: 1/6. (PMID:29198724)
- Transposition of the great arteries (HP:0001669): A complex congenital heart defect in which the aorta arises from the morphologic right ventricle and the pulmonary artery arises from the morphologic left ventricle. Evidence: IEA. (OMIM:617877)
- Broad forehead (HP:0000337): Width of the forehead or distance between the frontotemporales is more than two standard deviations above the mean (objective); or apparently increased distance between the two sides of the forehead. Evidence: PCS. Frequency: 8/12. (PMID:29198724)
- Dental crowding (HP:0000678): Changes in alignment of teeth in the dental arch. Evidence: PCS. Frequency: 6/10. (PMID:29198724)
- Thin upper lip vermilion (HP:0000219): 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). Evidence: IEA. Frequency: 10/12. (OMIM:617877)
- 11 pairs of ribs (HP:0000878): Presence of only 11 pairs of ribs. Evidence: PCS. Frequency: 6/9. (PMID:29198724)
- High palate (HP:0000218): 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). Evidence: IEA. (OMIM:617877)
- Pulmonic stenosis (HP:0001642): A narrowing of the right ventricular outflow tract that can occur at the pulmonary valve (valvular stenosis), below the pulmonary valve (infundibular stenosis), or above the pulmonary valve (supravalvar stenosis). Evidence: IEA. (OMIM:617877)
- Posteriorly rotated ears (HP:0000358): A type of abnormal location of the ears in which the position of the ears is characterized by posterior rotation (the superior part of the ears is rotated towards the back of the head, and the inferior part of the ears towards the front). Evidence: PCS. Frequency: 7/12. (PMID:29198724)
- Intellectual disability (HP:0001249): The term intellectual disability or intellectual developmental disorder is used to describe significantly sub-average intellectual and adaptive functioning based on clinical assessment and as measured by individually administered, appropriately normed, standardized and validated tests of intellectual functioning and adaptive behavior, with onset during the developmental period from infancy through adolescence. Evidence: PCS. Frequency: 0/11. (PMID:29198724)
- Downslanted palpebral fissures (HP:0000494): The palpebral fissure inclination is more than two standard deviations below the mean. Evidence: PCS. Frequency: 3/12. (PMID:29198724)
- Spondylolisthesis (HP:0003302): Complete bilateral fractures of the pars interarticularis resulting in the anterior slippage of the vertebra. Evidence: PCS. Frequency: 3/9. (PMID:29198724)
- Obstructive sleep apnea (HP:0002870): Obstructive Sleep Apnea is a condition characterized by the obstruction of the airway and pauses in breathing during sleep, which occur multiple times throughout the night. It is related to the relaxation of muscle tone that typically happens during sleep, leading to a partial collapse of the soft tissues in the airway and causing airflow obstruction. Evidence: PCS. Frequency: 4/11. (PMID:29198724)
- Delayed skeletal maturation (HP:0002750): A decreased rate of skeletal maturation. Delayed skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body. Evidence: IEA. (OMIM:617877)
- Everted lower lip vermilion (HP:0000232): An abnormal configuration of the lower lip such that it is turned outward i.e., everted, with the Inner aspect of the lower lip vermilion (normally opposing the teeth) being visible in a frontal view. Evidence: PCS. Frequency: 2/7. (PMID:29198724)
- Midface retrusion (HP:0011800): Posterior positions and/or vertical shortening of the infraorbital and perialar regions, or increased concavity of the face and/or reduced nasolabial angle. Evidence: PCS. Frequency: 11/12. (PMID:29198724)
- Toenail dysplasia (HP:0100797): An abnormality of the development of the toenails. Evidence: PCS. Frequency: 3/11. (PMID:29198724)
- Pectus excavatum (HP:0000767): A defect of the chest wall characterized by a depression of the sternum, giving the chest ("pectus") a caved-in ("excavatum") appearance. Evidence: IEA. (OMIM:617877)
- Clinodactyly of the 5th finger (HP:0004209): Clinodactyly refers to a bending or curvature of the fifth finger in the radial direction (i.e., towards the 4th finger). Evidence: PCS. Frequency: 4/11. (PMID:29198724)
- Conductive hearing impairment (HP:0000405): An abnormality of vibrational conductance of sound to the inner ear leading to impairment of sensory perception of sound. Evidence: PCS. Frequency: 4/11. (PMID:29198724)
- Prominent sternum (HP:0000884). Evidence: IEA. (OMIM:617877)
- Sandal gap (HP:0001852): A widely spaced gap between the first toe (the great toe) and the second toe. Evidence: PCS. Frequency: 8/11. (PMID:29198724)
- Synophrys (HP:0000664): Meeting of the medial eyebrows in the midline. Evidence: PCS. Frequency: 5/9. (PMID:29198724)
- Pierre-Robin sequence (HP:0000201): Pierre Robin malformation is a sequence of developmental malformations characterized by micrognathia (mandibular hypoplasia), glossoptosis and cleft palate. Evidence: PCS. Frequency: 3/11. (PMID:29198724)
- Autosomal dominant inheritance (HP:0000006): 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. Evidence: PCS. (PMID:29198724)
- Low-set ears (HP:0000369): 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. Evidence: IEA. Frequency: 7/12. (OMIM:617877)
- Short toe (HP:0001831): A toe that appears disproportionately short compared to the foot. Evidence: IEA. (OMIM:617877)