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  Indian J Med Microbiol
 

Figure 3: (a) Coronal B-mode ultrasound (US) in the anterior fontanelle shows an oval-shaped, anechoic cystic mass overlying the dural meninges but did not communicate with the brain. (a, b) The mass showed multiple irregular echogenic structures, which was proved to be sebum on the pathological specimen, and hyperechoic lines and dot in different orientations (white arrows in a and b; dot-dash sign) represent hair. (c) Colour Doppler interrogation showed absent flow within the mass. (d) Midline sagittal transfontanelle US demonstrated a sonographically normal brain

Figure 3: (a) Coronal B-mode ultrasound (US) in the anterior fontanelle shows an oval-shaped, anechoic cystic mass overlying the dural meninges but did not communicate with the brain. (a, b) The mass showed multiple irregular echogenic structures, which was proved to be sebum on the pathological specimen, and hyperechoic lines and dot in different orientations (white arrows in a and b; <i>dot-dash sign</i>) represent hair. (c) Colour Doppler interrogation showed absent flow within the mass. (d) Midline sagittal transfontanelle US demonstrated a sonographically normal brain