![]() ![]() ![]() Online supplemental material is available for this article. In addition, a flowchart to facilitate the differential diagnosis of EE abnormalities is provided. You can use songs that you already know as reference songs. Pitch ear training: Train your ear to recognize notes by playing the same note over and over while singing or humming it, and associating the sound with its name in your mind. MRI provides excellent tissue characterization and enables one to better define lesion extension and perineural tumor spread. This knowledge can be directly applied to practical ear training simply by listening to music and attempting to identify the chord progression. CT is usually the first diagnostic modality used to evaluate the EAC and is the superior method for demonstrating bone changes. An overview of the anatomy and embryologic development of the EE is presented, with discussion and illustrations of common and uncommon conditions that affect EE structures and a focus on the CT and MRI features that are of interest to radiologists. Congenital, traumatic, inflammatory, neoplastic, and vascular conditions can affect the EE. A basic understanding of the embryologic development and knowledge of the anatomy of the auricle and EAC are useful for accurate diagnosis of EE lesions. However, when lesions block visual access to areas deep to the EE abnormality, complications are suspected, or there is lack of response to treatment, imaging becomes essential. Given the ease of access to the EE, imaging studies are not always needed to make a diagnosis. It is divided into two parts: the auricle (or pinna) and the external auditory canal (EAC). A temporary trainee permit allows candidates to practice fitting hearing. The external ear (EE) is an osseous-cartilaginous structure that extends from the auricle to the tympanic membrane. The practical examination must be taken and passed prior to the expiration of. ![]()
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