头颈部病例89分析及病例90图像

（原文GaurangShah）建议多朗读英文并口译，小编翻译供参考，愿为您的放射之路锦上添花

头颈部病例89分析

A42-year-oldwomanpresentswiththroatmass.42岁女性，喉部肿块。

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(A–C)AxialMRIsoftheoropharynxwereobtainedincludingaxialT1postcontrastwithfatsuppression(A),axialT2withfatsuppression(B),andaxialDWI(C).Thereisahomogeneous,mildlyenhancing,well-demarcatedT2hypointensemasslesionalongtheexpectedlocationofthelefttonsil.LesiondemonstratesincreasedDWIsignal(arrows).

(A-C)口咽部轴位MRI，包括轴位T1脂肪抑制(A)、轴位T2脂肪抑制(B)和轴位DWI(C)。沿着左侧扁桃体见一个均匀、轻度强化、边界清楚的低T2信号肿块，病变DWI信号增高(箭头)。

DifferentialDiagnosis

?Tonsillarlymphoma:Tonsillartissueisrichinlymphaticsandthusapossiblelocationforlymphoma.Lymphomastendtobemorehomogenousthanothertonsillartumors.

?Squamouscellcarcinoma(SCCA):MostsofttissuemassesofthetonsilsareSCCA.However,theyareusuallymoreheterogeneous.

?Salivaryglandtumor:Althoughthesecanbepresentintheoropharynx,thetonsilisanun