Treatise on gynaecology : medical and surgical . ryo can be seen.^ Hennig has noticed that themuscular layer of the tube hypertrophies until the end of the secondmonth; later, under the influence of progressive distention, it becomesthinned and the fibres separate. Early ruj^ture is the rule in tubal pregnancy. Out of 45 cases EXTRA-UTERI]^E PREGNANCY. 241 studied by Hecker,^ the rupture occurred 26 times during the firsttwo months, 11 times in tlie third niontli, 7 times in the fourth, andonce in the fifth. Hofimann ^ in 8 medico-legal autopsies, found therupture 7 times in the second month,


Treatise on gynaecology : medical and surgical . ryo can be seen.^ Hennig has noticed that themuscular layer of the tube hypertrophies until the end of the secondmonth; later, under the influence of progressive distention, it becomesthinned and the fibres separate. Early ruj^ture is the rule in tubal pregnancy. Out of 45 cases EXTRA-UTERI]^E PREGNANCY. 241 studied by Hecker,^ the rupture occurred 26 times during the firsttwo months, 11 times in tlie third niontli, 7 times in the fourth, andonce in the fifth. Hofimann ^ in 8 medico-legal autopsies, found therupture 7 times in the second month, and once in the third. The sizeof the ruptured cyst is usually that of a hens egg. Kaltenbach ^^ be-lieves that adhesions preventing the expansion of the tube are animmediate cause of rupture. The tearing apart of excessively vascu-lar adhesions may in itself be the cause of severe hemorrhage; Kal-tenbach has rex)orted a case in which it was fatal. Freund ^^ has hada case, thus far unique, in which the rupture was due to


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