نتایج جستجو برای: tympanic cavity
تعداد نتایج: 81671 فیلتر نتایج به سال:
INTRODUCTION The jugular bulb is found at the junction of the horizontal segment of the sigmoid sinus and the superior end of the internal jugular vein. A high jugular bulb (HJB) may extend into the middle ear cavity lateral to the cochlea. The superior threshold of HJB varies according to various authors. The limits include the inferior bony annulus, the lower border of the round window, and t...
We present the case of a 38-year-old male in treatment for morbid obesity for 6 years, who had lost 20 kg of weight in the previous 12 months and who attended consultation after being assessed by 3 other professionals. The patient had also undergone placement of a ventilation tube in the left ear due to a sensation described as auditory ‘‘vibration’’ and autophony in the left ear, with 1.5 year...
Eustachian tube dysfunction can cause fluid to collect within the middle ear cavity and form a middle ear effusion (MEE). MEEs can persist for weeks or months and cause hearing loss as well as speech and learning delays in young children. The ability of a physician to accurately identify and characterize the middle ear for signs of fluid and/or infection is crucial to provide the most appropria...
CONCLUSION 3 T MRI after intratympanic injection of gadolinium-based contrast agent (GBCA) is more useful for the diagnosis of endolymphatic hydrops compared with the glycerol test and electrocochleography (ECoG). OBJECTIVE To investigate the relationship between 3 T MRI after intratympanic injection of GBCA, the glycerol test, and ECoG in patients with Meniere's disease (MD). METHODS A tot...
A new genus and species of notharctine primate, Hesperolemur actius, is described from Uintan (middle Eocene) aged rocks of San Diego County, California. Hesperolemur differs from all previously described adapiforms in having the anterior third of the ectotympanic anulus fused to the internal lateral wall of the auditory bulla. In this feature Hesperolemur superficially resembles extant cheirog...
Lizards have highly sensitive ears, but most lizard heads are small (1-2 cm in diameter) compared to the wavelengths of sound of frequencies to which they are most sensitive (1-4 kHz, wavelengths 34-8.5 cm). Therefore, the main cues to sound direction that mammals use - binaural time and intensity cues due to arrival-time differences and sound shadowing by the head--will be very small in lizard...
Although it appears very uncommon in adult COM, Mycobacterium abscessus should be considered as a possible cause of a chronically draining ear. Multi-antibiotic chemotherapy including high-dose clarithromycin can effectively treat adult COM cased by M. abscessus. The first case report of adult chronic otitis media (COM) caused by M. abscessus is described here. A 61-year-old woman presented per...
BACKGROUND AND OBJECTIVES The consequences of missing fever in children can be grave. Body temperature is commonly recorded at the axilla but accuracy is a problem. This study aimed to evaluate the accuracy of a tympanic thermometer in the paediatric emergency setting. METHOD In a total of 106 infants, the body temperature was measured in the daytime with an infrared tympanic thermometer, and...
This study was designed to verify an eventual perilymphatic fistula (PLF) in 264 patients with sensorineural hearing loss (SNHL) and/or vertigo. The patients were exposed to a low-frequency sound stimulation (LFS) on posturography to objectively test Tullio's phenomenon and Hennebert's sign. Endoscopes with 5 degree and 25 degree of visual angle and an outer diameter of 1.7 mm were used. The ro...
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