PMC10098404_01
(a) Axial plane computed tomography images of left Middle ear adenomatous neuroendocrine tumor (MEANT). Left, the tumor typically surrounds the ossicles. Right, the tumor extends into the auditory canal. (b) Coronal plane magnetic resonance images of left MEANT. Left, the tumor extending into the ear canal is isointense in T1-weighted image. Right, the tumor approaches the signal intensity of gray matter in T2-weighted image.
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F1
In temporal bone CT, the soft-tissue mass located the middle ear was found to extend to the antrum and the external auditory canal (Fig. 1a). The MRI showed that the soft-tissue mass extending into the ear canal was isointense in T1-weighted images, and it was close to the intensity of the gray matter signal in T2-weighted sequence (Fig. 1b).