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
Etiology:
What are trophic or metabolic disorders?
Resulting from disruptions or disorder of nutrition to some area
Example: Meniere’s disease
Etiology:
What are idiopathic lesions?
Dysfunction for which there is no known etiology
A disorder may originate as one class of ___ and evolve to another
Lesion
What is acquired hearing loss vs hereditary hearing loss?
Acquired: begin as normal auditory function, typically occur later in life
Hereditary: passed along though families, may manifest at birth (congenital)
Etiology is classified by ….
The thing that caused the hearing loss, etiology must be known
Diagnostic test results are classified by ….
Type, degree, configuration of loss
Site of lesion is classified by ….
Location (outer, middle, inner ear, brainstem, etc.)
