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A65-year-oldmanpresentswithdysphagia.65岁男性，吞咽困难。
A
B
C
(A–C)Abulkymoderatelyenhancingsofttissuemassinfiltratesthecricoidcartilage(arrow)causingsclerosisofleftarytenoidcartilage(arrowhead)anderosionofrightarytenoidcartilage(smallarrow).Thereispatchilyenhancingmildnodularityoflefttruevocalcord,suggestingthatspread.
(A-C)大而中等强化的软组织肿块浸润环状软骨(箭头)，导致左侧杓状软骨硬化(箭头)和右侧杓状软骨破坏(小箭头)。左侧真声带有片状强化轻度结节改变，提示扩散。
DifferentialDiagnosis
?Subglotticsquamouscellcarcinoma:Abulkysofttissuemasscenteredintheregionofcricoidcartilageresultingininfiltrationanddestructionwithinvolvementofarytenoidcartilages.Thereisinvolvementofposterior
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