Human Phenotype Ontology 
Grandparent Node:
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Hypertonia (HP:0001276)help
Parent Node:
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Spasticity (HP:0001257)help
..Starting node
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Clasp-knife sign (HP:0031866)help
Term ID: 31866
Name: Clasp-knife sign
Synonym:
Definition: Clasp-knife phenomonen refers to increased muscle tone while bending or stretching a limb, whereby there is a sudden relaxation (decrease in resistance) as the muscle continues to be streched. This phenomenon has been likened to opening a clasp knife.
Comments:
Reference: HP:0031866
Genes and Diseases:
 
       Child Nodes:

 Sister Nodes: 
..expandLower limb spasticity (HP:0002061) help
..expandOpisthotonus (HP:0002179) help
..expandProgressive spasticity (HP:0002191) help
..expandSpastic diplegia (HP:0001264) help
..expandSpastic dysarthria (HP:0002464) help
..expandSpastic gait (HP:0002064) help
..expandSpastic hemiparesis (HP:0011099) help
..expandSpastic tetraparesis (HP:0001285) help
..expandSpastic tetraplegia (HP:0002510) help
..expandSpasticity of facial muscles (HP:0002491) help
..expandSpasticity of pharyngeal muscles (HP:0002501) help
..expandUpper limb spasticity (HP:0006986) help
InputHPO IDHPO termDistanceGeneGene id entrezHGNC IDDiseaseIdDiseaseNameFrequencyOnsetHGMD variantsClinVar variants
 
HPO disease - gene - phenotype typical associations:
 
HPO disease - gene - phenotype less frequent non-typical associations:
HP:0031866HP:0031866Clasp-knife sign0 CL E G H


Genes (0) :

Diseases (0) :
 

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is December 15 2022 release.