From HPO
Leukemia- MedGen UID:
- 9725
- •Concept ID:
- C0023418
- •
- Neoplastic Process
A cancer of the blood and bone marrow characterized by an abnormal proliferation of leukocytes.
Acute lymphoid leukemia- MedGen UID:
- 7317
- •Concept ID:
- C0023449
- •
- Neoplastic Process
Acute lymphoblastic leukemia (ALL), also known as acute lymphocytic leukemia, is a subtype of acute leukemia, a cancer of the white blood cells. Somatically acquired mutations in several genes have been identified in ALL lymphoblasts, cells in the early stages of differentiation. Germline variation in certain genes may also predispose to susceptibility to ALL (Trevino et al., 2009).
Genetic Heterogeneity of Acute Lymphoblastic Leukemia
A susceptibility locus for acute lymphoblastic leukemia (ALL1) has been mapped to chromosome 10q21. See also ALL2 (613067), which has been mapped to chromosome 7p12.2; and ALL3 (615545), which is caused by mutation in the PAX5 gene (167414) on chromosome 9p.
Cryptorchidism- MedGen UID:
- 8192
- •Concept ID:
- C0010417
- •
- Congenital Abnormality
Cryptorchidism, or failure of testicular descent, is a common human congenital abnormality with a multifactorial etiology that likely reflects the involvement of endocrine, environmental, and hereditary factors. Cryptorchidism can result in infertility and increases risk for testicular tumors. Testicular descent from abdomen to scrotum occurs in 2 distinct phases: the transabdominal phase and the inguinoscrotal phase (summary by Gorlov et al., 2002).
Cubitus valgus- MedGen UID:
- 490152
- •Concept ID:
- C0158465
- •
- Acquired Abnormality
Abnormal positioning in which the elbows are turned out.
Coarctation of aorta- MedGen UID:
- 1617
- •Concept ID:
- C0003492
- •
- Congenital Abnormality
Coarctation of the aorta is a narrowing or constriction of a segment of the aorta.
Hypertrophic cardiomyopathy- MedGen UID:
- 2881
- •Concept ID:
- C0007194
- •
- Disease or Syndrome
Hypertrophic cardiomyopathy (HCM) is defined by the presence of increased ventricular wall thickness or mass in the absence of loading conditions (hypertension, valve disease) sufficient to cause the observed abnormality.
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.
Patent foramen ovale- MedGen UID:
- 8891
- •Concept ID:
- C0016522
- •
- Congenital Abnormality
Failure of the foramen ovale to seal postnatally, leaving a potential conduit between the left and right cardiac atria.
Atrial septal defect- MedGen UID:
- 6753
- •Concept ID:
- C0018817
- •
- Congenital Abnormality
Atrial septal defect (ASD) is a congenital abnormality of the interatrial septum that enables blood flow between the left and right atria via the interatrial septum.
Ventricular septal defect- MedGen UID:
- 42366
- •Concept ID:
- C0018818
- •
- Congenital Abnormality
A hole between the two bottom chambers (ventricles) of the heart. The defect is centered around the most superior aspect of the ventricular septum.
Mitral valve prolapse- MedGen UID:
- 7671
- •Concept ID:
- C0026267
- •
- Disease or Syndrome
One or both of the leaflets (cusps) of the mitral valve bulges back into the left atrium upon contraction of the left ventricle.
Mitral stenosis- MedGen UID:
- 44466
- •Concept ID:
- C0026269
- •
- Disease or Syndrome
An abnormal narrowing of the orifice of the mitral valve.
Bicuspid aortic valve- MedGen UID:
- 57436
- •Concept ID:
- C0149630
- •
- Congenital Abnormality
Aortic valve disease-2 (AOVD2) is characterized by bicuspid aortic valve (BAV) and dilation of the ascending aorta. Calcification of the valve and the aorta has been observed, and some patients exhibit coarctation of the aorta (Tan et al., 2012; Luyckx et al., 2019; Park et al., 2019).
For a general phenotypic description and a discussion of genetic heterogeneity of aortic valve disease, see AOVD1 (109730).
Pulmonary artery stenosis- MedGen UID:
- 65965
- •Concept ID:
- C0238397
- •
- Anatomical Abnormality
An abnormal narrowing or constriction of the pulmonary artery, in the main pulmonary artery and/or in the left or right pulmonary artery branches.
Cardiomyopathy- MedGen UID:
- 209232
- •Concept ID:
- C0878544
- •
- Disease or Syndrome
A myocardial disorder in which the heart muscle is structurally and functionally abnormal, in the absence of coronary artery disease, hypertension, valvular disease and congenital heart disease sufficient to cause the observed myocardial abnormality.
Atrioventricular canal defect- MedGen UID:
- 235591
- •Concept ID:
- C1389016
- •
- Anatomical Abnormality
A defect of the atrioventricular septum of the heart.
Pulmonic stenosis- MedGen UID:
- 408291
- •Concept ID:
- C1956257
- •
- Disease or Syndrome
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).
Abnormal coronary artery origin- MedGen UID:
- 868843
- •Concept ID:
- C4023253
- •
- Anatomical Abnormality
Isolated abnormalities of the coronary artery origins. This may be in associated with other structural heart malformations but not the patterns of complex structural heart malformations which result in abnormal course of the coronary arteries.
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).
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.
Posteriorly rotated ears- MedGen UID:
- 96566
- •Concept ID:
- C0431478
- •
- Congenital Abnormality
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).
Overfolded helix- MedGen UID:
- 325239
- •Concept ID:
- C1837731
- •
- Finding
A condition in which the helix is folded over to a greater degree than normal. That is, excessive curling of the helix edge, whereby the free edge is parallel to the plane of the ear.
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.
Intellectual disability- MedGen UID:
- 811461
- •Concept ID:
- C3714756
- •
- Mental or Behavioral Dysfunction
Intellectual disability, previously referred to as mental retardation, is characterized by subnormal intellectual functioning that occurs during the developmental period. It is defined by an IQ score below 70.
Micrognathia- MedGen UID:
- 44428
- •Concept ID:
- C0025990
- •
- Congenital Abnormality
Developmental hypoplasia of the mandible.
Pectus carinatum- MedGen UID:
- 57643
- •Concept ID:
- C0158731
- •
- Finding
A deformity of the chest caused by overgrowth of the ribs and characterized by protrusion of the sternum.
Distal arthrogryposis- MedGen UID:
- 120512
- •Concept ID:
- C0265213
- •
- Disease or Syndrome
An inherited primary limb malformation disorder characterized by congenital contractures of two or more different body areas and without primary neurologic and/or muscle disease that affects limb function.
Shield chest- MedGen UID:
- 322348
- •Concept ID:
- C1834124
- •
- Finding
A broad chest.
Relative macrocephaly- MedGen UID:
- 338607
- •Concept ID:
- C1849075
- •
- Congenital Abnormality
A relatively mild degree of macrocephaly in which the head circumference is not above two standard deviations from the mean, but appears dysproportionately large when other factors such as body stature are taken into account.
Abnormal sternum morphology- MedGen UID:
- 349830
- •Concept ID:
- C1860493
- •
- Anatomical Abnormality
An anomaly of the sternum, also known as the breastbone.
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.
Arthrogryposis multiplex congenita- MedGen UID:
- 1830310
- •Concept ID:
- C5779613
- •
- Disease or Syndrome
Multiple congenital contractures in different body areas.
Wide mouth- MedGen UID:
- 44238
- •Concept ID:
- C0024433
- •
- Congenital Abnormality
Distance between the oral commissures more than 2 SD above the mean. Alternatively, an apparently increased width of the oral aperture (subjective).
Cystic hygroma- MedGen UID:
- 60195
- •Concept ID:
- C0206620
- •
- Neoplastic Process
A cystic lymphatic lesion of the neck.
Webbed neck- MedGen UID:
- 113154
- •Concept ID:
- C0221217
- •
- Congenital Abnormality
Pterygium colli is a congenital skin fold that runs along the sides of the neck down to the shoulders. It involves an ectopic fibrotic facial band superficial to the trapezius muscle. Excess hair-bearing skin is also present and extends down the cervical region well beyond the normal hairline.
High palate- MedGen UID:
- 66814
- •Concept ID:
- C0240635
- •
- Congenital Abnormality
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).
Downslanted palpebral fissures- MedGen UID:
- 98391
- •Concept ID:
- C0423110
- •
- Finding
The palpebral fissure inclination is more than two standard deviations below the mean.
Telecanthus- MedGen UID:
- 140836
- •Concept ID:
- C0423113
- •
- Finding
Distance between the inner canthi more than two standard deviations above the mean (objective); or, apparently increased distance between the inner canthi.
Short neck- MedGen UID:
- 99267
- •Concept ID:
- C0521525
- •
- Finding
Diminished length of the neck.
Epicanthus- MedGen UID:
- 151862
- •Concept ID:
- C0678230
- •
- Congenital Abnormality
Epicanthus is a condition in which a fold of skin stretches from the upper to the lower eyelid, partially covering the inner canthus. Usher (1935) noted that epicanthus is a normal finding in the fetus of all races. Epicanthus also occurs in association with hereditary ptosis (110100).
Sparse eyebrow- MedGen UID:
- 371332
- •Concept ID:
- C1832446
- •
- Finding
Decreased density/number of eyebrow hairs.
Depressed nasal bridge- MedGen UID:
- 373112
- •Concept ID:
- C1836542
- •
- Finding
Posterior positioning of the nasal root in relation to the overall facial profile for age.
Anteverted nares- MedGen UID:
- 326648
- •Concept ID:
- C1840077
- •
- Finding
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).
Redundant neck skin- MedGen UID:
- 374440
- •Concept ID:
- C1840319
- •
- Finding
Excess skin around the neck, often lying in horizontal folds.
Pointed chin- MedGen UID:
- 336193
- •Concept ID:
- C1844505
- •
- Finding
A marked tapering of the lower face to the chin.
Wide nasal bridge- MedGen UID:
- 341441
- •Concept ID:
- C1849367
- •
- Finding
Increased breadth of the nasal bridge (and with it, the nasal root).
Midface retrusion- MedGen UID:
- 339938
- •Concept ID:
- C1853242
- •
- Anatomical Abnormality
Posterior positions and/or vertical shortening of the infraorbital and perialar regions, or increased concavity of the face and/or reduced nasolabial angle.
Low posterior hairline- MedGen UID:
- 383755
- •Concept ID:
- C1855728
- •
- Finding
Hair on the neck extends more inferiorly than usual.
Underdeveloped supraorbital ridges- MedGen UID:
- 349384
- •Concept ID:
- C1861869
- •
- Congenital Abnormality
Flatness of the supraorbital portion of the frontal bones.
Long philtrum- MedGen UID:
- 351278
- •Concept ID:
- C1865014
- •
- Finding
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.
Nevus- MedGen UID:
- 45074
- •Concept ID:
- C0027960
- •
- Neoplastic Process
A nevus is a type of hamartoma that is a circumscribed stable malformation of the skin.
Melanocytic nevus- MedGen UID:
- 14364
- •Concept ID:
- C0027962
- •
- Neoplastic Process
A oval and round, colored (usually medium-to dark brown, reddish brown, or flesh colored) lesion. Typically, a melanocytic nevus is less than 6 mm in diameter, but may be much smaller or larger.
Hyperpigmentation of the skin- MedGen UID:
- 57992
- •Concept ID:
- C0162834
- •
- Pathologic Function
A darkening of the skin related to an increase in melanin production and deposition.
Cafe-au-lait spot- MedGen UID:
- 113157
- •Concept ID:
- C0221263
- •
- Finding
Cafe-au-lait spots are hyperpigmented lesions that can vary in color from light brown to dark brown with smooth borders and having a size of 1.5 cm or more in adults and 0.5 cm or more in children.
Hyperextensible skin- MedGen UID:
- 66023
- •Concept ID:
- C0241074
- •
- Finding
A condition in which the skin can be stretched beyond normal, and then returns to its initial position.
Curly hair- MedGen UID:
- 488919
- •Concept ID:
- C0558165
- •
- Finding
Hyperkeratosis- MedGen UID:
- 209030
- •Concept ID:
- C0870082
- •
- Disease or Syndrome
Hyperkeratosis is thickening of the outer layer of the skin, the stratum corneum, which is composed of large, polyhedral, plate-like envelopes filled with keratin which are the dead cells that have migrated up from the stratum granulosum.
Prominent fingertip pads- MedGen UID:
- 322758
- •Concept ID:
- C1835807
- •
- Finding
A soft tissue prominence of the ventral aspects of the fingertips. The term "persistent fetal fingertip pads" is often used as a synonym, but should better not be used because it implies knowledge of history of the patient which often does not exist.
Hypermelanotic macule- MedGen UID:
- 375013
- •Concept ID:
- C1842774
- •
- Finding
A hyperpigmented circumscribed area of change in normal skin color without elevation or depression of any size.
Palmoplantar cutis laxa- MedGen UID:
- 341602
- •Concept ID:
- C1856714
- •
- Finding
Loose, wrinkled skin of hands and feet.
Polyhydramnios- MedGen UID:
- 6936
- •Concept ID:
- C0020224
- •
- Pathologic Function
The presence of excess amniotic fluid in the uterus during pregnancy.
Non-immune hydrops fetalis- MedGen UID:
- 105327
- •Concept ID:
- C0455988
- •
- Disease or Syndrome
Hydrops fetalis is a descriptive term for generalized edema of the fetus, with fluid accumulation in extravascular components and body cavities. It is not a diagnosis in itself, but a symptom and end-stage result of a wide variety of disorders. In the case of immune hydrops fetalis, a frequent cause is maternofetal incompatibility as in that related to a number of genetic anemias and metabolic disorders expressed in the fetus; in other instances, it remains idiopathic and likely multifactorial (summary by Bellini et al., 2009).
Nonimmune hydrops fetalis accounts for 76 to 87% of all described cases of hydrops fetalis (Bellini et al., 2009).
Genetic Heterogeneity of Hydrops Fetalis
In southeast Asia, alpha-thalassemia (604131) is the most common cause of hydrops fetalis, accounting for 60 to 90% of cases. Almost all of these cases result from homozygous deletion of the HBA1 (141800) and HBA2 (141850) genes. A few cases have been reported that had 1 apparently normal alpha-globin gene, termed the hemoglobin H (613978) hydrops fetalis syndrome (summary by Chui and Waye, 1998).
Other genetic disorders predisposing to NIHF include other congenital anemias, such as erythropoietic porphyria (e.g., 606938.0013), and many metabolic disorders, such as one form of Gaucher disease (e.g., 606463.0009), infantile sialic acid storage disease (269920), mucopolysaccharidosis type VII (253220), glycogen storage disease IV (232500), congenital disorder of glycosylation type Ia (212065), and disorders of lymphatic malformation (see, e.g., LMPHM1, 153100).
Increased nuchal translucency- MedGen UID:
- 869253
- •Concept ID:
- C4023676
- •
- Finding
Nuchal translucency is the sonographic appearance of subcutaneous accumulation of liquid in the back of the fetal neck in the first trimester of pregnancy (11-14 gestational weeks of pregnancy).
Wide intermamillary distance- MedGen UID:
- 473489
- •Concept ID:
- C1827524
- •
- Finding
A larger than usual distance between the left and right nipple.
Ptosis- MedGen UID:
- 2287
- •Concept ID:
- C0005745
- •
- Disease or Syndrome
The upper eyelid margin is positioned 3 mm or more lower than usual and covers the superior portion of the iris (objective); or, the upper lid margin obscures at least part of the pupil (subjective).
Hypertelorism- MedGen UID:
- 9373
- •Concept ID:
- C0020534
- •
- Finding
Although hypertelorism means an excessive distance between any paired organs (e.g., the nipples), the use of the word has come to be confined to ocular hypertelorism. Hypertelorism occurs as an isolated feature and is also a feature of many syndromes, e.g., Opitz G syndrome (see 300000), Greig cephalopolysyndactyly (175700), and Noonan syndrome (163950) (summary by Cohen et al., 1995).
Anterior polar cataract- MedGen UID:
- 340806
- •Concept ID:
- C1855179
- •
- Congenital Abnormality
A polar cataract that affects the anterior pole of the lens.
- Abnormality of head or neck
- Abnormality of limbs
- Abnormality of prenatal development or birth
- Abnormality of the breast
- Abnormality of the cardiovascular system
- Abnormality of the ear
- Abnormality of the eye
- Abnormality of the genitourinary system
- Abnormality of the integument
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system
- Growth abnormality
- Neoplasm