From HPO
Neurofibrosarcoma- MedGen UID:
- 104927
- •Concept ID:
- C0206729
- •
- Neoplastic Process
A form of malignant cancer of the connective tissue surrounding nerves. Given its origin and behavior, it is classified as a sarcoma.
Juvenile myelomonocytic leukemia- MedGen UID:
- 138109
- •Concept ID:
- C0349639
- •
- Neoplastic Process
Juvenile myelomonocytic leukemia is an aggressive pediatric myelodysplastic syndrome (MDS)/myeloproliferative disorder (MPD) characterized by malignant transformation in the hematopoietic stem cell compartment with proliferation of differentiated progeny (Loh et al., 2009). JMML constitutes approximately 30% of childhood cases of myelodysplastic syndrome and 2% of leukemia (Hasle et al., 1999). Although JMML is a progressive and often rapidly fatal disease without hematopoietic stem cell transplantation (HSCT), some patients have been shown to have a prolonged and stable clinical course without HSCT (Niemeyer et al., 1997). Chronic myelomonocytic leukemia (CMML) is a similar disorder with later onset. Both JMML and CMML have a high frequency of mutations affecting the RAS signaling pathway and show hypersensitivity to stimulation with GM-CSF, which causes STAT5 (601511) hyperphosphorylation (Loh et al., 2009).
Genetic Heterogeneity of Juvenile Myelomonocytic Leukemia
In up to 60% of cases of JMML, the RAS/MAPK pathway is deregulated due to somatic mutations in the PTPN11 (176876), KRAS (190070), and NRAS (164790) genes. Additionally, both germline and somatic mutations in the CBL gene have been found in patients with JMML, indicating a frequency of 10 to 15% of JMML patients overall (Loh et al., 2009). Somatic disruptions of the GRAF gene (ARHGAP26; 605370) have also been found in patients with JMML.
About 10 to 15% of JMML cases arise in children with neurofibromatosis type I (NF1; 162200) due to germline mutations in the NF1 gene (613113). In addition, patients with Noonan syndrome (NS1, 163950; NS3, 609942) or Noonan syndrome-like disorder (NSLL; 613563) due to germline mutations in the PTPN11, KRAS2, and CBL genes, respectively, also have an increased risk of developing JMML.
Genetic Heterogeneity of Chronic Myelomonocytic Leukemia
Somatic mutations in the CBL, ASXL1 (612990), TET2 (612839), and SF3B1 (605590) genes have been found in patients with CMML.
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).
Male infertility- MedGen UID:
- 5796
- •Concept ID:
- C0021364
- •
- Disease or Syndrome
The inability of the male to effect fertilization of an ovum after a specified period of unprotected intercourse. Male sterility is permanent infertility.
Hypospadias- MedGen UID:
- 163083
- •Concept ID:
- C0848558
- •
- Congenital Abnormality
Abnormal position of urethral meatus on the ventral penile shaft (underside) characterized by displacement of the urethral meatus from the tip of the glans penis to the ventral surface of the penis, scrotum, or perineum.
Cubitus valgus- MedGen UID:
- 490152
- •Concept ID:
- C0158465
- •
- Acquired Abnormality
Abnormal positioning in which the elbows are turned out.
Brachydactyly- MedGen UID:
- 67454
- •Concept ID:
- C0221357
- •
- Congenital Abnormality
Digits that appear disproportionately short compared to the hand/foot. The word brachydactyly is used here to describe a series distinct patterns of shortened digits (brachydactyly types A-E). This is the sense used here.
Radial deviation of finger- MedGen UID:
- 322852
- •Concept ID:
- C1836189
- •
- Finding
Bending or curvature of a finger toward the radial side (i.e., towards the thumb). The deviation is at the metacarpal-phalangeal joint, and this finding is distinct from clinodactyly.
Clinodactyly- MedGen UID:
- 1644094
- •Concept ID:
- C4551485
- •
- Congenital Abnormality
An angulation of a digit at an interphalangeal joint in the plane of the palm (finger) or sole (toe).
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.
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.
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).
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).
Postnatal growth retardation- MedGen UID:
- 395343
- •Concept ID:
- C1859778
- •
- Finding
Slow or limited growth after birth.
Failure to thrive in infancy- MedGen UID:
- 358083
- •Concept ID:
- C1867873
- •
- Finding
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.
Sensorineural hearing loss disorder- MedGen UID:
- 9164
- •Concept ID:
- C0018784
- •
- Disease or Syndrome
A type of hearing impairment in one or both ears related to an abnormal functionality of the cochlear nerve.
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.
Hearing impairment- MedGen UID:
- 235586
- •Concept ID:
- C1384666
- •
- Disease or Syndrome
A decreased magnitude of the sensory perception of sound.
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.
Factor XII deficiency disease- MedGen UID:
- 8772
- •Concept ID:
- C0015526
- •
- Disease or Syndrome
Decreased activity of coagulation factor XII. Factor XII (fXII) is part of the intrinsic coagulation pathway and binds to exposed collagen at site of vessel wall injury, activated by high-MW kininogen and kallikrein, thereby initiating the coagulation cascade.
Amegakaryocytic thrombocytopenia- MedGen UID:
- 97985
- •Concept ID:
- C0398639
- •
- Disease or Syndrome
Thrombocytopenia related to lack of or severe reduction in the count of megakaryocytes.
Abnormal bleeding- MedGen UID:
- 264316
- •Concept ID:
- C1458140
- •
- Pathologic Function
An abnormal susceptibility to bleeding, often referred to as a bleeding diathesis. A bleeding diathesis may be related to vascular, platelet and coagulation defects.
Reduced factor XIII activity- MedGen UID:
- 870254
- •Concept ID:
- C4024692
- •
- Finding
Decreased activity of coagulation factor XIII (also known as fibrin stabilizing factor). Activated Factor XIII cross-links fibrin polymers solidifying the clot.
Micrognathia- MedGen UID:
- 44428
- •Concept ID:
- C0025990
- •
- Congenital Abnormality
Developmental hypoplasia of the mandible.
Synovitis- MedGen UID:
- 21051
- •Concept ID:
- C0039103
- •
- Disease or Syndrome
Inflammation of a synovial membrane.
Kyphoscoliosis- MedGen UID:
- 154361
- •Concept ID:
- C0575158
- •
- Anatomical Abnormality
An abnormal curvature of the spine in both a coronal (lateral) and sagittal (back-to-front) plane.
Shield chest- MedGen UID:
- 322348
- •Concept ID:
- C1834124
- •
- Finding
A broad chest.
Abnormal sternum morphology- MedGen UID:
- 349830
- •Concept ID:
- C1860493
- •
- Anatomical Abnormality
An anomaly of the sternum, also known as the breastbone.
Superior pectus carinatum- MedGen UID:
- 351219
- •Concept ID:
- C1864795
- •
- Finding
Pectus carinatum affecting primarily the superior part of the sternum.
Pectus excavatum of inferior sternum- MedGen UID:
- 400614
- •Concept ID:
- C1864796
- •
- Finding
Pectus excavatum (defect of the chest wall characterized by depression of the sternum) affecting primarily the inferior region of the sternum.
Chylothorax- MedGen UID:
- 40305
- •Concept ID:
- C0008733
- •
- Disease or Syndrome
Accumulation of excessive amounts of lymphatic fluid (chyle) in the pleural cavity.
Lymphedema- MedGen UID:
- 6155
- •Concept ID:
- C0024236
- •
- Disease or Syndrome
Localized fluid retention and tissue swelling caused by a compromised lymphatic system.
Dental malocclusion- MedGen UID:
- 9869
- •Concept ID:
- C0024636
- •
- Anatomical Abnormality
Dental malocclusion refers to an abnormality of the occlusion, or alignment, of the teeth and the way the upper and lower teeth fit together, resulting in overcrowding of teeth or in abnormal bite patterns.
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.
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).
Triangular face- MedGen UID:
- 324383
- •Concept ID:
- C1835884
- •
- Finding
Facial contour, as viewed from the front, triangular in shape, with breadth at the temples and tapering to a narrow chin.
High, narrow palate- MedGen UID:
- 324787
- •Concept ID:
- C1837404
- •
- Finding
The presence of a high and narrow palate.
Broad forehead- MedGen UID:
- 338610
- •Concept ID:
- C1849089
- •
- Finding
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.
Low posterior hairline- MedGen UID:
- 383755
- •Concept ID:
- C1855728
- •
- Finding
Hair on the neck extends more inferiorly than usual.
Cleft palate- MedGen UID:
- 756015
- •Concept ID:
- C2981150
- •
- Congenital Abnormality
Cleft palate is a developmental defect of the palate resulting from a failure of fusion of the palatine processes and manifesting as a separation of the roof of the mouth (soft and hard palate).
Dry skin- MedGen UID:
- 56250
- •Concept ID:
- C0151908
- •
- Sign or Symptom
Skin characterized by the lack of natural or normal moisture.
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.
Wooly hair- MedGen UID:
- 87469
- •Concept ID:
- C0343073
- •
- Finding
The term wooly hair refers to an abnormal variant of hair that is fine, with tightly coiled curls, and often hypopigmented. Optical microscopy may reveal the presence of tight spirals and a clear diameter reduction as compared with normal hair. Electron microscopy may show flat, oval hair shafts with reduced transversal diameter.
Bruising susceptibility- MedGen UID:
- 140849
- •Concept ID:
- C0423798
- •
- Finding
An ecchymosis (bruise) refers to the skin discoloration caused by the escape of blood into the tissues from ruptured blood vessels. This term refers to an abnormally increased susceptibility to bruising. The corresponding phenotypic abnormality is generally elicited on medical history as a report of frequent ecchymoses or bruising without adequate trauma.
Hypogonadism- MedGen UID:
- 5711
- •Concept ID:
- C0020619
- •
- Disease or Syndrome
A decreased functionality of the gonad.
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).
Myopia- MedGen UID:
- 44558
- •Concept ID:
- C0027092
- •
- Disease or Syndrome
Nearsightedness, also known as myopia, is an eye condition that causes blurry distance vision. People who are nearsighted have more trouble seeing things that are far away (such as when driving) than things that are close up (such as when reading or using a computer). If it is not treated with corrective lenses or surgery, nearsightedness can lead to squinting, eyestrain, headaches, and significant visual impairment.\n\nNearsightedness usually begins in childhood or adolescence. It tends to worsen with age until adulthood, when it may stop getting worse (stabilize). In some people, nearsightedness improves in later adulthood.\n\nFor normal vision, light passes through the clear cornea at the front of the eye and is focused by the lens onto the surface of the retina, which is the lining of the back of the eye that contains light-sensing cells. People who are nearsighted typically have eyeballs that are too long from front to back. As a result, light entering the eye is focused too far forward, in front of the retina instead of on its surface. It is this change that causes distant objects to appear blurry. The longer the eyeball is, the farther forward light rays will be focused and the more severely nearsighted a person will be.\n\nNearsightedness is measured by how powerful a lens must be to correct it. The standard unit of lens power is called a diopter. Negative (minus) powered lenses are used to correct nearsightedness. The more severe a person's nearsightedness, the larger the number of diopters required for correction. In an individual with nearsightedness, one eye may be more nearsighted than the other.\n\nEye doctors often refer to nearsightedness less than -5 or -6 diopters as "common myopia." Nearsightedness of -6 diopters or more is commonly called "high myopia." This distinction is important because high myopia increases a person's risk of developing other eye problems that can lead to permanent vision loss or blindness. These problems include tearing and detachment of the retina, clouding of the lens (cataract), and an eye disease called glaucoma that is usually related to increased pressure within the eye. The risk of these other eye problems increases with the severity of the nearsightedness. The term "pathological myopia" is used to describe cases in which high myopia leads to tissue damage within the eye.
- Abnormality of blood and blood-forming tissues
- Abnormality of head or neck
- Abnormality of limbs
- Abnormality of metabolism/homeostasis
- Abnormality of the breast
- Abnormality of the cardiovascular system
- Abnormality of the digestive system
- Abnormality of the endocrine system
- Abnormality of the eye
- Abnormality of the genitourinary system
- Abnormality of the integument
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system
- Abnormality of the respiratory system
- Ear malformation
- Growth abnormality
- Neoplasm