Carlos Morra and Ernst Franzek: Psychopathological Symptoms
Definition: The maintenance of a stereotyped grimace in which the lips are placed circularly and advanced tubularly in a manner symilar to an animal's snout (Hamilton 1976).
Exploration: The presence of grimacing can be established by observing the patient.
Hamilton M. Fish´s Clinical Psychopathology. 2nd Ed. Bristol: Wright; 1976. p. 94.
November 14, 2019