Background. - Tuberculosis of the uro-genital tract is uncommon in bat
h sexes before puberty. Cases reports. - Case 1. A 10 year-old boy suf
fered from chronic cystitis. Urine examination showed pyuria without b
acteria and absence of mycobacterium tuberculosis on direct smears and
culture. Intravenous pyelography showed left ureterohydronephrosis an
d a nonfunctioning right kidney with calcifications. A right nephrecto
my was performed which showed caseous lesions with granulomas. A tripl
e specific therapy failed to completely cure the vesicoureteral lesion
s. Case 2. A 9 year-old boy was admitted for the suspicion of appendic
itis. Renal ultrasonography showed features of abscesses located to th
e right kidney and the liver. Laparotomy showed their tuberculous orig
in which was confirmed by histological examination and positive search
for Mycobacterium tuberculosis in urine. The course was favorable und
er specific treatment. Conclusions. - Diagnosis of tuberculosis of the
uro-genital tract may be difficult leading to a delayed treatment and
sequellae.