. Roentgen interpretation; a manual for students and practitioners . Fig. 131.—Malignant disease of the esophagus at the middle third. 156 GASTRO-INTESTINAL TRACT course. The contraction of extra-esophageal fibrous tissue mayresult in constriction or sacculation. Diverticula.—Diverticula may be found anj-wliere in the courseof the esophagus, most commonly the upper and lower ends. Theyappear as rounded pouches which overflow into the esophagusthrough an opening at one side. It may be necessary to view thepatient from several angles to bring this opening into profile. Theyremain partially fille
. Roentgen interpretation; a manual for students and practitioners . Fig. 131.—Malignant disease of the esophagus at the middle third. 156 GASTRO-INTESTINAL TRACT course. The contraction of extra-esophageal fibrous tissue mayresult in constriction or sacculation. Diverticula.—Diverticula may be found anj-wliere in the courseof the esophagus, most commonly the upper and lower ends. Theyappear as rounded pouches which overflow into the esophagusthrough an opening at one side. It may be necessary to view thepatient from several angles to bring this opening into profile. Theyremain partially filled after the remainder of the meal has passed liquid meal is to be preferred, as solid masses may not enterthe pocket. In rare cases the meal may be seen to enter a descendingbronchus as a result of broncho-esophageal fistula, usually due to carcnioma. STOMACH. In the standing position the normal stomach hangs more or lesscentrallv in the abdomen with the lesser curvature above the level. Fig. 132.—Normal stomach. of the crests of the ilia. The greater curvature lies at a variabledistance below the lesser. The form and position of the stomach STOMACH 157 are determined by the architecture of the individual, the tone ofthe gastric wall, the tension of the abdominal muscles, the pressureof neighboring organs and the amount of the meal. Thin individualswith a narrow costal arch have long central stomachs which hanglow in the pelvis. In broad, fat individuals with a wide costal archand in those of strong muscular development the stomach is high
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