. The American journal of roentgenology, radium therapy and nuclear medicine . two or more inches in diameter. The tend-ency is graduallv to increase in size, theearliest stages being microscopic. The aver-age size found at autopsy or operation isabout that of a pea. They are of variable shape, being usuallyround or ovoid. Some are distinctly peduncu-lated, with a minute opening into the lumenof the intestine. Fig. 2. Portion of Descending Colon. Speci-men laid open to show the internal orifices-of the diverticula. (Taken from MaxwellTelling and Gruner, British Journal ofSurgery, \o\. iv, No.


. The American journal of roentgenology, radium therapy and nuclear medicine . two or more inches in diameter. The tend-ency is graduallv to increase in size, theearliest stages being microscopic. The aver-age size found at autopsy or operation isabout that of a pea. They are of variable shape, being usuallyround or ovoid. Some are distinctly peduncu-lated, with a minute opening into the lumenof the intestine. Fig. 2. Portion of Descending Colon. Speci-men laid open to show the internal orifices-of the diverticula. (Taken from MaxwellTelling and Gruner, British Journal ofSurgery, \o\. iv, No. 15. Waiters have reported foreign bodies in thediverticula. The diverticula project from the exteriorof the gut, usually close to the mesenteric at-tachment (Figs. I and 2). They may befound between the two layers of peritoneumforming the mesentery. It is also observedthat the diverticula are in close proximity tothe epiploic appendices. Under the microscope the walls of the di-verticula are seen to consist of mucosa, usu- 4^4 The Roentgen Ray in Diverticulitis of the Colon. Fk;. 3. Normal Colon. Plate made a harium


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