Tapeworm infestation has previously been demonstrated roentgenologically. Penfold and Penfold (3) consider the roentgen demonstration more interesting as a scientific curiosity than a practicable means of diagnosis. It is believed, however, that occasionally a roentgenologic diagnosis of Taenia saginata will be of practical value. The beef tapeworm is found wherever beef is eaten. Strong (4) reports that “it is the commonest large tapeworm of man, next to Hymenolepis nana, in the United States…. In some localities, as in Africa and Syria, and also among the Tibetans, one-fourth to three-fourths of the inhabitants are reported as infested…. The adult worm is found in the proximal part of the small intestine. It is from four to eight meters long and is made up of several hundred (up to 2,000) segments. “When infected meat is eaten raw or inadequately cooked, the cyst wall is dissolved, the scolex attaches itself to the intestinal wall and grows rapidly, reaching the adult stage after about two months. The m...