Intro to Hearing Disorders Flashcards
What is a disorder?
Less than specific terms that refers, generally, to functional abnormality
Example: autism, auditory processing disorder
What is a lesion?
Any pathologic or traumatic discontinuity of tissue or loss of function
Example: blowing out your ear drum
Size (relative):
What are gross or macroscopic lesions?
-Visible, can be seen
Size (relative):
What are histologic or microscopic lesions?
-Visible only under a microscope
Size (relative):
What are molecular lesions?
-Visible with an operating microscope or high-powered magnification
Size (magnitude):
What are focal lesions?
Limited to a small area like an 8th nerve tumor
Size (magnitude):
What are diffuse lesions?
Cover a wide area (Multiple sclerosis)
Size (magnitude):
What are systemic lesions?
Affects the entire system or organ as opposed to individual parts (anoxia)
Size (magnitude):
What are structural lesions?
Change in the anatomical construct (otosclerosis)
Prognosis:
What are depressive lesions?
Result in decrease of function
Example: hearing loss, cholesteatoma
Prognosis:
What are destructive lesions?
Normally lead to obliteration of an organ or abolishment of function
Example: autoimmune disease
Prognosis:
What are degenerative lesions?
Involve deterioration of a mechanism or function over time
Example: aging
Prognosis:
What are irritative lesions?
Stimulate the function of the involved area
Example: Meniere’s disease
Etiology:
What are traumatic lesions?
Resulting from an external insult
Example: head injury, noise exposure
Etiology:
What are vascular lesions?
Resulting from disorders of the bloodstream
Example: autoimmune disease
