小型脑脓肿的CT诊断：附44例分析

CT Diagnosis of Small Cerebral Abscesses-Analysis of 44 Cases

Small cerebral abscess in 44 cases diagnosed by surgery and treated by antibio-tics were reevaluated with CT.The diameter was under 15mm.CT manifestation inclu-ded:1.an irregular low density area above cerebelli tentorium in precontrast CT;2.a round or ellipse reinforcement area even and clear in contrast enhanced scan;3.an edematous area of different degrees around the focus infection;4.During the pro-cess of resolution of the abscess the edematous area and the potentiation ring werereducing in size,the ring wall became indistinct and disappeared finally.Differentialdiagnosis was also discussed.