CHANGES IN NON-PREGNANT UTERUS 



79 



and more recently by Findley/ while Leopold has described the 

 appearance of the fatty degeneration as a result rather than a cause 

 of hBemorrhage. 



After the extravasation of blood, the corpuscles tend to become 

 aggregated in lacunae which lie beneath the superficial epithelium. 

 These lacunse are the sub-epithelial haematomata of Gebhard,^ 

 according to whom the epithelium becomes lifted almost bodily from 

 its bed, the space between it and the stroma being filled with blood. 

 Gebhard concludes that the blood eventually reaches the uterine 



Fig. 9. — Section through mucosa of human uterus, showing extravasation 

 of blood. (From Sellheim.) 



cavity by being forced between the epithelial cells, or that a larger 

 exit is provided by certain of the cells being carried bodily away. 

 Gebhard also believes that bleeding may- take place into the lumina 

 of the glands. Christ ^ states that when the menstrual flow is very 

 profuse there is a considerable loss of surface epithelium, but that in 

 other cases the removal of epithelium is slight. This author has 

 also described bleeding into the glands. (Tig. 10.) 



* Findley, "Anatomy of the Menstruating Uterus," Amei: Jour. Obstet, 

 vol. xlv., 1902. 



2 Gebhard, " Ueber das Verhalten der Uterusschleimhaut bei der Menstrua- 

 tipn," Verhajid. d. Gesells. f. Oeh. li. Oyn. zu Berlin, Zeitsch. f. Oeb. u. Oyn., 

 vol. xxxii., 1895. 



' Christ, "Das Verhalten der Uterusschleimhaut wahrend der Menstrua- 

 tion," Inorg. Dissert., Giessen, 1892. 



