ABSTRACT
1 The roentgen diagnosis of ascariasis in the gastro-intestinal tract is not meant entirely to supplant the microscopic examination2. The roentgen examination of the gastro-intestinal tract furnishes an invaluable aid or for the proper management of cases presenting typical and even frank gastro-intestinal pathological conditions3. Because of the high incidence of ascariasis in the Philippines, the X-ray examination of the gastro-intestinal tract may prove to be a valuable aid in the diagnosis of vague gastro-intestinal disturbances4. Roentgen diagnosis of ascariaris in the gastro-intestinal tract may be positive in the instances where feces examination is negative. This contradiction may occur: (a) when there are not adult worms present; (b) when the ascaris present are males only5. The X-ray findings, if positive, give also the worms situation in the gastro-intestinal tract. Such a locating could not be furnished by the feces examination alone6. Because of the insufficient amount of contrast substance which can be ingested by children the result of roentgen examination is not so satisfactory with them as with adults. (Summary)