We report our results on 110 patients that attended our Hospital during a four years period(1981-84). The range age was between three months to 16 years.Short treatment with INH+RMP during nine months, and also ETB or SM during the first three months, it was given to the first group of 61 patients. The same treatment during 12 to 18 months was done to a second group of 49 children.After treatment suppression, both groups have been controlled at least during one year. At 9 months treatment normal clinical examination was found on all patients (110/110), and none showed relapse. Normal chest X-Ray examination was obtained on 48 over 61 patients of first group. On 12/61 patients it became normal between 10 and 16 months. On account of bronchiectasis abnormal images persisted in one case (1/61).In the second group normal radiological exam was seen on 17/49 patients, when they finished 9 months treatment. And 26/49 patients obtained it, between 10 and 25 months. Remaining pathological images was due to bronchiectasis(3/49), pulmonary sequester(1/49), fibrocaseous tuberculosis(1/49) and tuberculous granuloma(1/49).CONCLUSION: The above mentioned 9 months treatment is able to heal the disease on almost all cases. Though afterwards we recomend a follow-up during one year.