From HPO
Pes planus- MedGen UID:
- 42034
- •Concept ID:
- C0016202
- •
- Anatomical Abnormality
A foot where the longitudinal arch of the foot is in contact with the ground or floor when the individual is standing; or, in a patient lying supine, a foot where the arch is in contact with the surface of a flat board pressed against the sole of the foot by the examiner with a pressure similar to that expected from weight bearing; or, the height of the arch is reduced.
Pes cavus- MedGen UID:
- 675590
- •Concept ID:
- C0728829
- •
- Congenital Abnormality
An increase in height of the medial longitudinal arch of the foot that does not flatten on weight bearing (i.e., a distinctly hollow form of the sole of the foot when it is bearing weight).
Hammertoe- MedGen UID:
- 209712
- •Concept ID:
- C1136179
- •
- Anatomical Abnormality
Hyperextension of the metatarsal-phalangeal joint with hyperflexion of the proximal interphalangeal (PIP) joint.
Distal lower limb muscle weakness- MedGen UID:
- 324514
- •Concept ID:
- C1836450
- •
- Finding
Reduced strength of the distal musculature of the legs.
Foot dorsiflexor weakness- MedGen UID:
- 356163
- •Concept ID:
- C1866141
- •
- Finding
Weakness of the muscles responsible for dorsiflexion of the foot, that is, of the movement of the toes towards the shin. The foot dorsiflexors include the tibialis anterior, the extensor hallucis longus, the extensor digitorum longus, and the peroneus tertius muscles.
Split hand- MedGen UID:
- 397570
- •Concept ID:
- C2699510
- •
- Congenital Abnormality
A condition in which middle parts of the hand (fingers and metacarpals) are missing giving a cleft appearance. The severity is very variable ranging from slightly hypoplastic middle fingers over absent middel fingers as far as oligo- or monodactyl hands.
Ulnar claw- MedGen UID:
- 871311
- •Concept ID:
- C4025799
- •
- Congenital Abnormality
An abnormal hand position characterized by hyperextension of the fourth and fifth fingers at the metacarpophalangeal joints and flexion of the interphalangeal joints of the same fingers such that they are curled towards the palm.
Areflexia- MedGen UID:
- 115943
- •Concept ID:
- C0234146
- •
- Finding
Absence of neurologic reflexes such as the knee-jerk reaction.
Sensory ataxia- MedGen UID:
- 66020
- •Concept ID:
- C0240991
- •
- Sign or Symptom
Incoordination of movement caused by a deficit in the sensory nervous system. Sensory ataxia can be distinguished from cerebellar ataxia by asking the patient to close his or her eyes. Persons with cerebellar ataxia show only a minimal worsening of symptoms, whereas persons with sensory ataxia show a marked worsening of symptoms.
Steppage gait- MedGen UID:
- 98105
- •Concept ID:
- C0427149
- •
- Finding
An abnormal gait pattern that arises from weakness of the pretibial and peroneal muscles due to a lower motor neuron lesion. Affected patients have footdrop and are unable to dorsiflex and evert the foot. The leg is lifted high on walking so that the toes clear the ground, and there may be a slapping noise when the foot strikes the ground again.
Hyporeflexia- MedGen UID:
- 195967
- •Concept ID:
- C0700078
- •
- Finding
Reduction of neurologic reflexes such as the knee-jerk reaction.
Broad-based gait- MedGen UID:
- 167799
- •Concept ID:
- C0856863
- •
- Finding
An abnormal gait pattern in which persons stand and walk with their feet spaced widely apart. This is often a component of cerebellar ataxia.
Peripheral demyelination- MedGen UID:
- 451074
- •Concept ID:
- C0878575
- •
- Pathologic Function
A loss of myelin from the internode regions along myelinated nerve fibers of the peripheral nervous system.
Increased CSF protein concentration- MedGen UID:
- 329971
- •Concept ID:
- C1806780
- •
- Finding
Increased concentration of protein in the cerebrospinal fluid.
Hypertrophic nerve changes- MedGen UID:
- 322038
- •Concept ID:
- C1832776
- •
- Finding
Segmental peripheral demyelination/remyelination- MedGen UID:
- 335873
- •Concept ID:
- C1843077
- •
- Finding
A segmental pattern of demyelination and regeneration (remyelination) affecting peripheral nerves.
Distal sensory impairment- MedGen UID:
- 335722
- •Concept ID:
- C1847584
- •
- Finding
An abnormal reduction in sensation in the distal portions of the extremities.
Onion bulb formation- MedGen UID:
- 376237
- •Concept ID:
- C1847906
- •
- Finding
Repeated episodes of segmental demyelination and remyelination lead to the accumulation of supernumerary Schwann cells around axons, which is referred to as onion bulb formation. This finding affects peripheral nerves.
Decreased sensory nerve conduction velocity- MedGen UID:
- 336512
- •Concept ID:
- C1849148
- •
- Finding
Reduced speed of conduction of the action potential along a sensory nerve.
Impaired distal vibration sensation- MedGen UID:
- 381262
- •Concept ID:
- C1853767
- •
- Finding
A decrease in the ability to perceive vibration in the distal portions of the limbs.
Motor delay- MedGen UID:
- 381392
- •Concept ID:
- C1854301
- •
- Finding
A type of Developmental delay characterized by a delay in acquiring motor skills.
Decreased number of peripheral myelinated nerve fibers- MedGen UID:
- 346872
- •Concept ID:
- C1858285
- •
- Finding
A loss of myelinated nerve fibers in the peripheral nervous system (in general, this finding can be observed on nerve biopsy).
Decreased motor nerve conduction velocity- MedGen UID:
- 388130
- •Concept ID:
- C1858729
- •
- Finding
A type of decreased nerve conduction velocity that affects the motor neuron.
Myelin tomacula- MedGen UID:
- 866559
- •Concept ID:
- C4020904
- •
- Disease or Syndrome
The presence of multiple sausage-shaped swellings of the myelin sheath (The Latin tomaculum means sausage).
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.
Scoliosis- MedGen UID:
- 11348
- •Concept ID:
- C0036439
- •
- Disease or Syndrome
The presence of an abnormal lateral curvature of the spine.
Proximal muscle weakness- MedGen UID:
- 113169
- •Concept ID:
- C0221629
- •
- Finding
A lack of strength of the proximal muscles.
Distal muscle weakness- MedGen UID:
- 140883
- •Concept ID:
- C0427065
- •
- Finding
Reduced strength of the musculature of the distal extremities.
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.
Distal amyotrophy- MedGen UID:
- 338530
- •Concept ID:
- C1848736
- •
- Disease or Syndrome
Muscular atrophy affecting muscles in the distal portions of the extremities.
Tongue fasciculations- MedGen UID:
- 65987
- •Concept ID:
- C0239548
- •
- Finding
Fasciculations or fibrillation affecting the tongue muscle.
Nystagmus- MedGen UID:
- 45166
- •Concept ID:
- C0028738
- •
- Disease or Syndrome
Rhythmic, involuntary oscillations of one or both eyes related to abnormality in fixation, conjugate gaze, or vestibular mechanisms.
- Abnormality of head or neck
- Abnormality of limbs
- Abnormality of the eye
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system