[Chronic cystitis in a child (author's transl)].

The authors report an unusual case of pseudo-tumoral cystitis in a young boy also suffering on the same side from a purulent arthritis of the hip with an abscess pointing towards the pelvis and treated by iliac drainage. In contrast to other published cases, it was neither a cystic cystitis nor a glandular cystitis, but a chronic bullous cystitis without any specificity. Prolonged antibiotic treatment achieved the desired aim at the same time as all symptoms and signs of the arthritis of the hip disappeared.