Abstract
The exact place and formation of cysts of E. histolytica in human infections has not been decided. Most text books venture the opinion that the cystic stage is formed in the fecal stream and not in the bowel wall, where this ameba species causes abscess formations followed by ulcerations. Warthin (1) described the presence of cysts and pre-cysts of E. histolytica in amebic lesions of the testis and of lthe epididymis. No ather references to such observations were found by this worker in the medical literature. Using a technic consisting of careful cleansing of the fecal stream overlying amebic abscesses, by means of aspiration employing a woven catheter and ear, nose and throat suction machine, followed by additional cleansing by aspiration with 1 cc bacteriologic pipette, the wrTiter aspirated material containing cysts of E. histolytica from abscesses in the bowel wall of 25 patients with intestinal amebiasis.
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