Four cases of choroid plexitis of the brain (two with cryptococcosis a
nd two with tuberculosis) are presented. The four patients showed eith
er unilateral enlargement (3) or bilateral enlargement(1) and dense en
hancement of the choroid plexus in the lateral ventricles (4) and four
th ventricle (1) in association with clinical findings of leptomeningi
tis, All patients had unilateral cystic dilatation of the temporal hor
n of the lateral ventricle presumably secondary to entrapment of the t
emporal horn and extensive oedema around the ipsilateral ventricle.