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  Indian J Med Microbiol
 

Figure 4: (a) Midsagittal section (step 3). Two parallel echogenic lines are seen at dorsum of tongue, inner representing the air-mucosal interface tongue and outer representing hard palate with posterior acoustic shadowing. Dotted black dividing tongue into anterior and posterior halves. (b) Corresponding computed tomographic section (red lines – representing limit of ultrasound scan extent); blue arrow, body of hyoid; red arrow, inner echogenic line; yellow arrow, outer echogenic line; dotted black line, imaginary line perpendicular to the axis of palate

Figure 4: (a) Midsagittal section (step 3). Two parallel echogenic lines are seen at dorsum of tongue, inner representing the air-mucosal interface tongue and outer representing hard palate with posterior acoustic shadowing. Dotted black dividing tongue into anterior and posterior halves. (b) Corresponding computed tomographic section (red lines – representing limit of ultrasound scan extent); blue arrow, body of hyoid; red arrow, inner echogenic line; yellow arrow, outer echogenic line; dotted black line, imaginary line perpendicular to the axis of palate