External ear canal cholesteatoma (EAC) is a rare destructive lesion within temporal bone and may occur in 1:1000 new patients with ear diseases [1, 3]. EAC cholesteatoma was first described by Toynbee in 1850. Since that time, it had confused to keratosis obturans. First description of keratosis obturans was presented by Piepergerdes et al., in 1980 [6]. Keratosis obturans (KO) is a similar to ...

Early intervention through hearing screening can reduce the negative impact of hearing loss for children. Optimal outcomes are achieved when an appropriate screening protocol is selected, a pathway for follow up care is established, and when a hearing conservation component is included. This study aimed to describe the outcomes of a hearing screening service provided to grade one learners in ur...

OBJECTIVE Otitis externa (OE), also known as "swimmer's ear", is an inflammation or infection of the external auditory canal. Many risk factors have been identified, mainly excessive moisture in the canal from swimming. STUDY DESIGN/METHODS To study the leading risk factors of otitis externa. Eighty-seven children aged 3.5-12 years (mean 68+/-6.5 months) who were diagnosed with otitis externa...

Genetic polymorphisms of blood groups, serum proteins, red cell enzymes, PTC tasting, and cerumen types are reported for five Mongoloid populations of Buryats from the Lake Baikal region of Siberia (Russia). These groups are characterized by relatively high frequencies of alleles ABO*B, RH*D, cerumen D, GC*1F, ACP1*B, ESD*2, and PGD*C. Significant genetic heterogeneity between populations was d...