Submitby
Guang-QianOu,MD;Guang-YanSi,MD;Qi-ZhouHe,MD;LiuYong,MD.
DepartmentofRadiology,
thesecondaffiliatedhospitalofSichuanMedicalUniversity（now,southwestmedicaluniversity）,
LuZhouCity,SichuanprovinceofChina.
病例来源
欧光乾,斯光晏,何其舟,刘勇
中国.四川.四川医科大学（现西南医科大学）医院
Clinic
A41-year-oldman,presentedwithprogressiveheadacheabout3months,gotsevereandfollowedwithnausea3days.
临床
M，41Y，进行性头痛3月，加重伴恶心3天。
Imagings/影像
CT/nonecontrast/contrast/MR/T2WI/T1WI+C
Chooseplease/请你选择
A.Brainabscess/脑脓肿
B.Hematoma/血肿
C.Cavernoushemangioma/海绵状血管瘤
D.Chronicencapsulatedintracerebralhematoma/慢性包膜性脑内血肿
Diagnosis
Chronicencapsulatedintracerebralhematoma,CEICH
Figurecaption
Chronicencapsulatedintra-cerebralhematoma(CEICH)isonetypeofintra-cerebralhematomathatsometimesgrowsprogressivelywhileformingacapsuleandpresentingwithneurologicaldeficits.TheclassicCTandMRimagingisintracerebralmasswithcapsuleandedema.Themassisheterogeneous,mainlypresenthypo-denseonCT(FigureA),hypo-intensitybothonMRT1WIandT2WI(FigureCandD).ThemassmayshowthehemosiderosisringonT2WI(whitearrow,FigureC).Thecapsuleisverysmooth,presentslightormoderateenhancementafterinjectioncontrastmedia(yellowarrow,FigureBandD).ThedifferentialdiagnosisincludeBrainabscess,Hematoma,CavernousHemangiomaandcerebraltumor.Thesurgicalresectionmaybetheonly