Common Chemosensory Disorders


We are devoted to testing patients with chemosensory disorders (dysfunction of smell or taste). The diagnostic evaluation includes a neurological examination, and a variety of smell and taste tests. We also assess how smell loss impacts psychological well-being, such as depression or social interaction and hence the quality of life.
Study Synopses
Addison's Disease
A disorder characterized by cluster headaches, migraines and adrenal cortical insufficiency.
AGEUSIA
Absent taste, which is often attributed to medications and surgical procedures. Antithyroid and antimetabolic agents along with radiation therapy, neoplasms and inflammatory diseases in the oral cavity can cause ageusia.
ANOSMIA
The absent ability to smell. The most frequent cause for this is from head trauma secondary to automobile accidents.
BURNING MOUTH SYNDROME (BMS)
This syndrome causes chronic burning in the mouth. Patients complain of sensation as if their mouth and lips are on fire Diseases causing BMS include viral infection, salivary gland dysfunction, taste dysfunction, hematological disorders, central nervous system disorders, diabetes mellitus, and Sjogren's syndrome.
CACOSMIA
When an odor is normally perceived as hedonically pleasant and that same odor is perceived as unpleasant. Symptoms associated with this are headaches, dizziness, shortness of breath and anxiety.
DYSOSMIA
A distorted smell seen in the presence of an odorant.
HYPERGEUSIA
An increased ability to taste.
HYPEROSMIA
An increased ability to smell.
HYPOGEUSIA
A reduced ability to taste.
HYPOSMIA
A reduced ability to smell. We often see patients who suffer from this following an upper respiratory condition. For example, being able to identify the perfume that a person wore who sat in the chair before. This is common in patients with Addison's Disease.
METALLIC PHANTOGEUSIA
A hallucinated taste of metal, which has been seen as part of an aura or seizure in patients with temporal lobe epilepsy.
OLFACTORY SYNESTHESIA SYNDROME
A syndrome when one sense is misperceived. For example, if you place gentle pressure directly to your eyelids with eyes closed, you begin to see light spots before your eyes. These spots are actually caused by the pressure misperceived as light.