From HPO
Homocitrullinuria- MedGen UID:
- 382116
- •Concept ID:
- C2673490
- •
- Finding
An increased amount of L-homocitrulline in the urine. L-homocitrulline is an L-lysine derivative that is L-lysine having a carbamoyl group at the N(6)-position. It is found in individuals with urea cycle disorders.
Failure to thrive- MedGen UID:
- 746019
- •Concept ID:
- C2315100
- •
- Disease or Syndrome
Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.
Hepatomegaly- MedGen UID:
- 42428
- •Concept ID:
- C0019209
- •
- Finding
Abnormally increased size of the liver.
Decreased liver function- MedGen UID:
- 65430
- •Concept ID:
- C0232744
- •
- Finding
Reduced ability of the liver to perform its functions.
Acute hepatitis- MedGen UID:
- 82759
- •Concept ID:
- C0267797
- •
- Disease or Syndrome
Acute hepatic injury resulting from inflammation typically accompanied by increased serum alanine transaminase activity. Etiologies include viral hepatitis, drugs, toxins, and autoimmune disorders.
Episodic vomiting- MedGen UID:
- 333228
- •Concept ID:
- C1838993
- •
- Finding
Paroxysmal, recurrent episodes of vomiting.
Protein avoidance- MedGen UID:
- 326521
- •Concept ID:
- C1839531
- •
- Finding
Clonus- MedGen UID:
- 40341
- •Concept ID:
- C0009024
- •
- Sign or Symptom
A series of rhythmic and involuntary muscle contractions (at a frequency of about 5 to 7 Hz) that occur in response to an abruptly applied and sustained stretch.
Coma- MedGen UID:
- 1054
- •Concept ID:
- C0009421
- •
- Disease or Syndrome
The complete absence of wakefulness and consciousness, which is evident through a lack of response to any form of external stimuli.
Confusion- MedGen UID:
- 3587
- •Concept ID:
- C0009676
- •
- Mental or Behavioral Dysfunction
Lack of clarity and coherence of thought, perception, understanding, or action.
Lethargy- MedGen UID:
- 7310
- •Concept ID:
- C0023380
- •
- Sign or Symptom
A state of fatigue, either physical or mental slowness and sluggishness, with difficulties in initiating or performing simple tasks. Distinguished from apathy which implies indifference and a lack of desire or interest in the task. A person with lethargy may have the desire, but not the energy to engage in personal or socially relevant tasks.
Spastic diplegia- MedGen UID:
- 44181
- •Concept ID:
- C0023882
- •
- Disease or Syndrome
Spasticity (neuromuscular hypertonia) primarily in the muscles of the legs, hips, and pelvis.
Spasticity- MedGen UID:
- 7753
- •Concept ID:
- C0026838
- •
- Sign or Symptom
A motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes with increased muscle tone, exaggerated (hyperexcitable) tendon reflexes.
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.
Spastic paraparesis- MedGen UID:
- 52432
- •Concept ID:
- C0037771
- •
- Sign or Symptom
Mild or moderate loss of motor function accompanied by spasticity in the lower extremities. This condition is a manifestation of CENTRAL NERVOUS SYSTEM DISEASES that cause injury to the motor cortex or descending motor pathways.
Spastic paraplegia- MedGen UID:
- 20882
- •Concept ID:
- C0037772
- •
- Disease or Syndrome
Spasticity and weakness of the leg and hip muscles.
Hyperreflexia- MedGen UID:
- 57738
- •Concept ID:
- C0151889
- •
- Finding
Hyperreflexia is the presence of hyperactive stretch reflexes of the muscles.
Spastic gait- MedGen UID:
- 115907
- •Concept ID:
- C0231687
- •
- Finding
Spasticity is manifested by increased stretch reflex which is intensified with movement velocity. This results in excessive and inappropriate muscle activation which can contribute to muscle hypertonia. Spastic gait is characterized by manifestations such as muscle hypertonia, stiff knee, and circumduction of the leg.
Abnormal pyramidal sign- MedGen UID:
- 68582
- •Concept ID:
- C0234132
- •
- Sign or Symptom
Functional neurological abnormalities related to dysfunction of the pyramidal tract.
Dysmetria- MedGen UID:
- 68583
- •Concept ID:
- C0234162
- •
- Finding
A type of ataxia characterized by the inability to carry out movements with the correct range and motion across the plane of more than one joint related to incorrect estimation of the distances required for targeted movements.
Dysdiadochokinesis- MedGen UID:
- 115975
- •Concept ID:
- C0234979
- •
- Sign or Symptom
A type of ataxia characterized by the impairment of the ability to perform rapidly alternating movements, such as pronating and supinating his or her hand on the dorsum of the other hand as rapidly as possible.
Scanning speech- MedGen UID:
- 116113
- •Concept ID:
- C0240952
- •
- Mental or Behavioral Dysfunction
An abnormal pattern of speech in which the words are as if measured or scanned; there is a pause after every syllable, and the syllables themselves are pronounced slowly.
Truncal ataxia- MedGen UID:
- 96535
- •Concept ID:
- C0427190
- •
- Sign or Symptom
Truncal ataxia is a sign of ataxia characterized by instability of the trunk. It usually occurs during sitting.
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.
Poor coordination- MedGen UID:
- 107874
- •Concept ID:
- C0563243
- •
- Finding
Impaired vibratory sensation- MedGen UID:
- 220959
- •Concept ID:
- C1295585
- •
- Finding
A decrease in the ability to perceive vibration. Clinically, this is usually tested with a tuning fork which vibrates at 128 Hz and is applied to bony prominences such as the malleoli at the ankles or the metacarpal-phalangeal joints. There is a slow decay of vibration from the tuning fork. The degree of vibratory sense loss can be crudely estimated by counting the number of seconds that the examiner can perceive the vibration longer than the patient.
Acute encephalopathy- MedGen UID:
- 224930
- •Concept ID:
- C1306587
- •
- Disease or Syndrome
A life-threatening disorder characterized by delirium, seizures, and neuromuscular changes.
Motor delay- MedGen UID:
- 381392
- •Concept ID:
- C1854301
- •
- Finding
A type of Developmental delay characterized by a delay in acquiring motor skills.
Decreased nerve conduction velocity- MedGen UID:
- 347509
- •Concept ID:
- C1857640
- •
- Finding
A reduction in the speed at which electrical signals propagate along the axon of a neuron.
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.
Generalized myoclonic seizure- MedGen UID:
- 892704
- •Concept ID:
- C4021759
- •
- Disease or Syndrome
A generalized myoclonic seizure is a type of generalized motor seizure characterized by bilateral, sudden, brief (<100 ms) involuntary single or multiple contraction of muscles or muscle groups of variable topography (axial, proximal limb, distal). Myoclonus is less regularly repetitive and less sustained than is clonus.
Specific learning disability- MedGen UID:
- 871302
- •Concept ID:
- C4025790
- •
- Mental or Behavioral Dysfunction
Impairment of certain skills such as reading or writing, coordination, self-control, or attention that interfere with the ability to learn. The impairment is not related to a global deficiency of intelligence.
Cerebral cortical atrophy- MedGen UID:
- 1646740
- •Concept ID:
- C4551583
- •
- Disease or Syndrome
Atrophy of the cortex of the cerebrum.
Hypotonia- MedGen UID:
- 10133
- •Concept ID:
- C0026827
- •
- Finding
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.
Hyperornithinemia- MedGen UID:
- 109343
- •Concept ID:
- C0599035
- •
- Disease or Syndrome
Gyrate atrophy of the choroid and retina, which is often shortened to gyrate atrophy, is an inherited disorder characterized by progressive vision loss. People with this disorder have an ongoing loss of cells (atrophy) in the retina, which is the specialized light-sensitive tissue that lines the back of the eye, and in a nearby tissue layer called the choroid. During childhood, they begin experiencing nearsightedness (myopia), difficulty seeing in low light (night blindness), and loss of side (peripheral) vision. Over time, their field of vision continues to narrow, resulting in tunnel vision. Many people with gyrate atrophy also develop clouding of the lens of the eyes (cataracts). These progressive vision changes lead to blindness by about the age of 50.\n\nMost people with gyrate atrophy have no symptoms other than vision loss, but some have additional features of the disorder. Occasionally, newborns with gyrate atrophy develop excess ammonia in the blood (hyperammonemia), which may lead to poor feeding, vomiting, seizures, or coma. Neonatal hyperammonemia associated with gyrate atrophy generally responds quickly to treatment and does not recur after the newborn period.\n\nGyrate atrophy usually does not affect intelligence; however, abnormalities may be observed in brain imaging or other neurological testing. In some cases, mild to moderate intellectual disability is associated with gyrate atrophy.\n\nGyrate atrophy may also cause disturbances in the nerves connecting the brain and spinal cord to muscles and sensory cells (peripheral nervous system). In some people with the disorder these abnormalities lead to numbness, tingling, or pain in the hands or feet, while in others they are detectable only by electrical testing of the nerve impulses.\n\nIn some people with gyrate atrophy, a particular type of muscle fibers (type II fibers) break down over time. While this muscle abnormality usually causes no symptoms, it may result in mild weakness.
Hyperammonemia- MedGen UID:
- 1802066
- •Concept ID:
- C5574662
- •
- Laboratory or Test Result
An increased concentration of ammonia in the blood.
Hypopigmentation of the fundus- MedGen UID:
- 101805
- •Concept ID:
- C0151891
- •
- Disease or Syndrome
Reduced pigmentation of the fundus, typically generalized. Fundoscopy may reveal a low level pigment in both RPE and choroid with clear visibility of choroidal vessels (pale/albinoid) or low pigment level in the RPE with deep pigment in choroid so that visible choroidal vessels are separated by deeply pigmented zones (tesselated/tigroid).
Chorioretinal atrophy- MedGen UID:
- 884881
- •Concept ID:
- C4048273
- •
- Disease or Syndrome
Atrophy of the choroid and retinal layers of the fundus.
- Abnormality of metabolism/homeostasis
- Abnormality of the digestive system
- Abnormality of the eye
- Abnormality of the genitourinary system
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system
- Growth abnormality