Lesion
A lesion ( Latin laesio 'injury' ) is a damage, injury or disruption of an anatomical structure or physiological function .
Lesion: injury, wound
Injury in the true sense of the word is any external wound to physical integrity , i.e. trauma (e.g. as a result of an accident ). If multiple damage occurs, it is also referred to as multiple injury or, in the case of a life-threatening multiple injury, multiple trauma .
In skin diseases , lesions are also the different appearances on the skin : blisters ( vesicles ), blisters (bullae), crusts (crustae), papules (papules), nodules ( nodules ), ulcers (see also primary efflorescences ). The doctors speak in these cases of vesicular , bullous , verkrustenden or crusted , papular , nodular or ulcerated lesions, the characteristics of each different diseases are or may be.
In medical imaging ( radiology ) areas with changed signal behavior are summarized as lesions, or because their origin (inflammation, parasite, tumor, injury, wear and tear ...) is not yet known. The direction of the signal change is usually indicated with the prefix hypo- 'less' or hyper- 'more' depending on the physical property of the tissue shown:
- in magnetic resonance imaging : hypointense, hyperintense;
- in nuclear medicine : likewise, for hypointense also “photopenic”, or colloquially “cold” and “hot”;
- for X-ray examinations : hypodense (also called "brightening") or hyperdense ("shading");
- for ultrasound examinations : reduced or increased echogenicity.
Functio laesa
According to Celsus and Galen , the functio laesa , the impaired function, is one of the five characteristic features of inflammation and the leading symptom of a broken bone .
Lesion
The lesion (probably a fusion of the two terms lesion and wound) is a minor damage, a minor damage, also of things.
See also
- Lesion study
- Sighting category for injury severity
- Mental defect
