[Echographic morbidity due to Schistosoma haematobium in a peripheral district of Bamako in Mali, Missabougou].

Frequency of urologic lesions was evaluated in 408 children from 6-15 years old in a suburban area of Bamako district in Mali, Missabougou; 65.2% from children were infected by Schistosoma haematobium, 13% by Schistosoma mansoni and 0.2% by Schistosoma intercalatum. Urologic lesions have been demonstrated in 223 cases among which 66 cases of urinary bladder lesions, 108 cases of hydronephrosis and 49 cases of mixed lesions. In order of the frequency we had the following uropathic lesions: wall thickening, wall irregularities, localised hypertrophies and hydronephrosis. We did not found any lesions in 185 children. Infection due to S. haematobium did not varied significantly in spite of age group, sex, schooling of children or the profession of the parents. Lesions were strongly correlated with age group (47.8 and 61.3% in 6-9 and 10-15 years old respectively) (p < 0.01) and with intensity of infection as measured by urinary egg counts (p = 0.0017).