Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . rgicai Diseases of the Abdomen, 1903. p. 170. Hemmeter,Diseases of the Intestine. 1902, p. 356. Comer, Annals of Surgery, Nov.,1903, p. 690. ^?Brit. ^led. Jour., Jan. 10, 1903, p. 72. A I, I M !•: \T A H Y C ANAL. 7 I 7 Morbid A ihilom -At autopsies one ])art of the intestine is fre-ciucntly found invaijinatcd within another, hut there is no evidence ofintlaniniation or vascuhir obstruction, and the ronchtion is usuallyheheved to have arisen durini, the period, or ])ost!n
Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . rgicai Diseases of the Abdomen, 1903. p. 170. Hemmeter,Diseases of the Intestine. 1902, p. 356. Comer, Annals of Surgery, Nov.,1903, p. 690. ^?Brit. ^led. Jour., Jan. 10, 1903, p. 72. A I, I M !•: \T A H Y C ANAL. 7 I 7 Morbid A ihilom -At autopsies one ])art of the intestine is fre-ciucntly found invaijinatcd within another, hut there is no evidence ofintlaniniation or vascuhir obstruction, and the ronchtion is usuallyheheved to have arisen durini, the period, or ])ost!norteni. Sev-eral forms of the disease are recoi^nized: enteric invagination occurs inthe small intestine: when the ileum is invai^Mnatci] tliidti^h the ileocecalvalve the condition is called ileocolic intussusception ; in ileocecalintussusception both ileum and cecum are invai^inated and the valveot Rauhin forms the ay)ex of the intussusceptum; when the affectionis restricted to the colon, it is called colic invagination. A sectionthrousajh the involved gut discloses three intestinal layers: the outer. Fic. 351.—Intvssusception Diagram Intendkd to Show the Relation of the Sevehal Parts in ^50. Till- oullinis of the caput coli and of ihi- apix-ndix have been added in order to indicate more clearly the relatiims D. The apix-ndix. The letters have the same siRnificance as in Fig. 351. is known as the , or sheath, and the inner two constitutethe inttissiistrptitni. At the point where the intussusceptum enters theintusstscij)iens there is usually a constriction called the neck. The partof the intussusceptum farthest from the neck is known as the double intussusception a previously invaginated portion is carriedonward en —intussuscipiens and intussusceptum—into the intes-tine below. Sometimes the invaginated ])ortion of the intestine is ofgreat length; the ileum may pass through the ileocecal valve and pre-sent at the anus. As a result
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