Some points in the anatomy, pathology, and surgery of intussusception . sated into the connective tissue between the crypts ofLieberkiihu, which have thus been more widely separated fromeach other than usual. The submucous coat is also greatlythickened by congestion, and by the extravasation of blood intoits connective tissue, but the muscular coats are not greatly 1 Trans. Path. Soc. Load., 1886, vol. xxxvii., p. 240. 2 St. Barth. Hosp. Mus., Xo. 2,181 (a). INTUSSUSCEPTION 29 affected, nor is the mesentery inflamed. The greatest effusion ofblood has taken place near the muscularis mucosae, fo


Some points in the anatomy, pathology, and surgery of intussusception . sated into the connective tissue between the crypts ofLieberkiihu, which have thus been more widely separated fromeach other than usual. The submucous coat is also greatlythickened by congestion, and by the extravasation of blood intoits connective tissue, but the muscular coats are not greatly 1 Trans. Path. Soc. Load., 1886, vol. xxxvii., p. 240. 2 St. Barth. Hosp. Mus., Xo. 2,181 (a). INTUSSUSCEPTION 29 affected, nor is the mesentery inflamed. The greatest effusion ofblood has taken place near the muscularis mucosae, for the deeperportions of the submucous tissue and the muscular coats aremerely congested and oedematous. The longitudinal layer ofmuscle is much less affected than the circular layer, as is usualin intussusceptions. Fig. 17 repiesents a section taken from the second or retrogradeintussusception. The relative thickness of the mucous, submucous,and muscular layers is unaltered, but the serous coat is congestedand the mesentery is inflamed. It is therefore fair to assume. Fio. 17.—Section through the second or retrogi-ade intussusception, from thesame ease as the preceding. The relative thickness of the mucous, suh-mucous, and muscular layers is unaffected, but the serous coat is thickenedand its vessels are congested. that the retrograde invagination was formed later than the ileo-colic intussusception. It seems to have been produced when thechild was so exhausted that the wall of its alimentary canal hardlyresponded to the effects of pressure, yet the patient was not abso-lutely moribund, for there is a slight congestion of the blood-vessels in the submucous tissue, and the vessels in the serouscoat and in the mesentery are greatly enlarged. The patient was a boy, set. 5 months, who was so suddenly 30 SOME POINTS IN THE MINUTE ANA TOMY OF attacked with illness five days before his death that he wasthought to have had a fit. He suffered from the usual symp-toms of intussusceptio


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