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FIG 5. False-positive CT finding in a 68-year-old man who underwent total laryngectomy 5 years earlier.
A, Axial CT scan shows a well-defined isodense mass abutting left side of neopharynx (arrow). Preservation of surrounding fat plane is notable.
B, On axial sonogram, the mass shows horseshoe-like folded neopharynx (arrow). There was no clinical evidence of recurrence. Note the even thickness of each of the neopharyngeal layers.
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