. Roentgen interpretation; a manual for students and practitioners . Fig. 159.—Specific stomach. Polypi.—Polypi of the gastric wall are comparatively rare. Theymay be multiple and when demonstrable, appear as smooth, roundedholes in the barium shadow which remain constant with changesin the position of the patient. Peristaltic waves are not interferedwith. The condition must be differentiated from foreign materialsin the stomach, such as food masses and from extragastric tumors. STOMACH 179 Their constancy is the best evidence. In the late stages, if extensive,they may cause obstruction and be
. Roentgen interpretation; a manual for students and practitioners . Fig. 159.—Specific stomach. Polypi.—Polypi of the gastric wall are comparatively rare. Theymay be multiple and when demonstrable, appear as smooth, roundedholes in the barium shadow which remain constant with changesin the position of the patient. Peristaltic waves are not interferedwith. The condition must be differentiated from foreign materialsin the stomach, such as food masses and from extragastric tumors. STOMACH 179 Their constancy is the best evidence. In the late stages, if extensive,they may cause obstruction and be mistaken for mahgnancy. The stomach after gastro-enterostomy is usually smaller andhigher. It empties rapidly, depending somewhat upon the size ofthe stoma. There is little peristalsis visible. When seen it usuallypasses over the entire lower part of the stomach to the pylorus,forcing the barium mixture through unless it has been closed at.
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