Choroid plexus xanthogranulomas
Incidental CT brain finding in 12 years old female who presented with history of persistent headache for the last few weeks.
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Normal appearance of the brain parenchyma with no evidence of space occupying lesion.Ventricles and basal cisterns appear normal.
Incidental findings of bilateral symmetrical small cyst with ring calcification, measures 1.3 x 1.6cm in the right side, 1.2 into 1.7cm in the left side, in the choroid plexus of the occipital horns, in keeping with choroid plexus xanthogranulomas.Incidental findings of parietal foramina, larger on the left side.
No evidence of sinusitis.
Choroid plexus xanthogranulomas are common incidental finding which are mainly asymptomatic; However, in rare cases they may complicated by hemorrhage or get enlarged and cause mass pressure effect.
On CT they have similar density of the adjacent choroid plexus and usually inapparent but if slightly enlarged they can cause displacement of choroidal calcifications around their periphery to be more apparent as in our case.
Case submitted By Dr.Abeer Alhelali & Dr.Thuzar WIN.