Innominate lines of the colon. Radiological--histological correlation

Radiological-histological studies showed that the normal mucosal units of the colon are bounded by the innominate lines. The lines are superficial identations of the mucosa with depths of 0.23 mm. No histological difference was demonstrated according to the three radiographic types found. These lines are demonstrable in about 90% of double-contrast examinations using 60-70% w/v barium. The colon should be prepared with dietary restriction, magnesium citrate, and contact laxative under sufficient hydration. The lines can also be demonstrated at endoscopy with dye scattering.

Minute mucosal patterns in gastric carcinoma. Magnification radiography of resected gastric specimens

Magnification radiographs of 32 resected gastric specimens were used for analysis of minute gastric mucosal patterns according to the size and shape of the gastric areas and the appearances of the sulci between them. The mucosal patterns of 92 portions of stomachs were divided into 5 types and observed for correlation with their macroscopic appearances and histology. Destruction of the gastric areas and the sulci was predominant in the carcinomatous mucosa. However, among the patterns of noncarcinomatous mucosa, 18% of those with marked mucosal atrophy had abnormal mucosal patterns impossible to distinguish from carcinomatous mucosa.

Roentgen features of the superficial depressed type of early gastric carcinoma

The superficial depressed type of early gastric carcinoma is described. The macroscopic appearance is characterized by an irregular erosion, often associated with a deeper central ulceration. The surrounding mucosal folds exhibit abrupt termination, narrowing, and clubbing. The roentgen diagnosis requires good demonstrations of detail. The double-contrast technique is most important and informative and can be used to study almost any part of the stomach.