June 18, 2008
Study: Olfactory Bulb Size May Change
German scientists say they've found the brain's olfactory bulb appears to change in size in a way that corresponds to changes in people's sense of smell.
Dr. Antje Haehner and colleagues at the University of Dresden Medical School studied 20 patients with loss of sense of smell, or olfactory loss. Once during 2003-04 and again 13 to 19 months later the patients underwent a brain scan and an assessment of olfactory function.
The correlation between olfactory bulb volume and olfactory function could be used to provide patients with information on the prognosis of their disease, the researchers said.
Hypothetically, a multifactorial approach could be applied to eventually come up with a formula that would allow a more precise prognosis of olfactory function, they added.
The study appears in the June issue of the journal Archives of Otolaryngology -- Head & Neck Surgery.