FETUS COMPRESSUS. 



161 



GROUP 7. 



No. 60. 



(1) G. W. Dobbin, Baltimore, Maryland. 



(2) B 8 mm. 



(4) The mutilated body and extremities of the embryo 

 appear normal in form. 



(5) The tissues are considerably macerated and the 

 specimen may be normal. The spinal cord is solid. There 

 are large islands of blood-cells in the very degenerate 

 liver. The umbilical vesicles are completely destroyed a 

 little distance from the abdomen, and near the latter the 

 cord is distended and the stroma almost completely 

 destroyed. 



(6) Probably a normal mutilated and macerated embryo. 

 Decidua absent. 



No. 79. 



(1) David K. Briggs, Blackville, South Carolina. 



(2) A 50X50X50 mm.; B 32 mm. 



(3) Abortion took place 91 days after the beginning of 

 the last menstrual period. 



(4) The specimen was received with all of the mem- 

 branes intact. When opened, it was found that the am- 

 nion was filled, and the embryo entirely covered with a 

 layer of firmly coagulated granular magma. 



(5) The chorion is very necrotic, thick on one side and 

 thin on the other. Many of the villi also are necrotic 

 and others have undergone mucoid degeneration. All are 

 non-vascular. There is much degenerate trophoblast. 

 The decidua is very degenerate. Serial sections of the 

 embryo show that it must have been strangulated long 

 before the abortion took place. The central nervous sys- 

 tem is greatly macerated, the liver has disintegrated, and 

 the aorta is very much distended. The rest of the embryo 

 appears normal. The intestine is almost entirely within 

 the peritoneal cavity, but a single loop of it still remains 

 in the opening communicating with the ccelom of the cord. 

 The vessels of the latter are still present. The embryo is 

 completely covered with a layer of magma which contains 

 but few celjs. Below this the epidermis is lacking at many 

 points, while at others it appears fairly normal. 



(6) Decidua absent. Early hydatifonn degeneration. 



No. 94. 



(1) Edwin G. Knill, Detroit, Michigan. 



(2) A 50X40X30 mm.; B 20 mm. 



(4) The ovum is smooth, with villi on one side only. 

 The amnion measures 30X20 mm., and does not fill the 

 chorion completely. Within it there is much coagulated 

 matter which entirely envelops the embryo, but which 

 can be picked off easily in large flakes. The embryo 

 thus exposed is bent upon itself more than usual and ap- 

 pears macerated, as if it had been dead for a number of 

 days. The features are not clear, nor are the tips of the 

 hands and feet well defined. The lower part of the body 

 is necrotic and the spinal cord is protruding. 



(5) The sections show that the villi of the chorion are 

 degenerate and non-vascular. The decidua is infiltrated. 

 The mesoderm of the chorion and amnion clearly show 

 marked degeneration. The embryo itself is normal in 

 shape, but the brain is greatly dissociated; the liver is 

 cloudy and projects into the cord. All of the epidermis 

 is exfoliated, and great masses of degenerate nuclei lie 

 between the embryo and the envelope of magma. 



(6) Decidua infiltrated; early hydatiform degeneration. 



No. 97. 



(1) Gustav Goldman, Baltimore, Maryland. 



(2) A 33X30X15 mm.; B 7 mm. 



(3) Beginning of last menstrual period March 8; abor- 

 tion May 8. 



(4) The ovum appeared normal, with the villi distributed 

 equally over it. Upon opening, it was found filled with 

 dense magma reticule, in which could be discerned the 

 faint outline of a 4-weeks' embryo. The embryo, amnion, 

 and umbilical vesicle are all normal in form. 



(5) The amnion is filled with cells; the umbilical vesicle 

 is filled with migrating cells, but its blood-islands and 

 entoderm appear fairly normal. The chorion is fibrous 

 rarefied, and macerated. The outer covering of the 

 vesicle is composed of a short layer of columnar epithelial 



i, J. ma sm a of the coelom is filled with wandering 

 cells. On one side of the embryo the epidermis is missing. 

 1 he nervous system is greatly dilated and dissociated and 

 the liver tissue obscured and filled with migrating cells 

 Ine contour of the abdominal viscera is obliterated and 

 they, likewise, are filled with migrating cells. Pharynx 

 heart, large veins, and aorta are greatly dilated. 



(6) Decidua absent. Some hydatiform degeneration. 



No. 124. 



(1) H. F. Cassidy, Baltimore, Maryland. 



(2) A 90X75X50mm.;B-35mm. 



(4) The ovum was received fresh and unopened. It 

 appears as a transparent cyst with a crescent-shaped 

 placenta on one end, measuring 60X50 mm. Within 

 it was a second sac, 50X37X35 mm., with tough 

 fibrous walls, which proved to be the amnion. Within 

 this was an embryo, with club hands and feet, pointed 

 ears, and a very thin, twisted umbilical cord. 



(5) Sections of the placenta show that the villi are 

 matted together and covered with a thick layer of decidual 

 cells. The wall of the chorion is considerably thickened 

 immediately below the placenta and fibrous in structure. 

 Between the villi at their bases there is a quantity of fresh 

 blood, and between their distal ends there is a great quan- 

 tity of trophoblast which does not stain well and appears 

 to be necrotic. Masses of granules, which stain intensely 

 with hematoxylin, can be seen. Sections of this interest- 

 ing specimen do not reveal very much, for the tissues do 

 not stain well. The form of the organs and skeleton, 

 with the exception of that of the extremities, appears to 

 be normal. However, the skin appears more fibrous than 

 usual, being somewhat infiltrated with round cells. In 

 the deformed extremities this infiltration is very pro- 

 nounced and involves all of the structures of the hands 

 and feet, with the exception of the cartilages. Syndactyly 

 is present. 



(6) Marked decidual infiltration; changes in chorion 

 suggest lues. 



No. 133. 



(1) J. M. Hundley, Baltimore, Maryland. 



(2) A 32X32X32 mm.; B 12mm. 



(3) Patient's last period began September 15 and con- 

 tinued 8 days; bloody discharge began November 11, and 

 abortion occurred on the 19th. Both parents perfectly 

 healthy. 



(4) When received, the specimen was thought to be 

 normal, but after a piece of the chorion had been cut the 

 ccelom was found to be completely filled with a dense mass 

 of magma reticule. In taking off the piece of chorion the 

 attachment of the umbilical cord was cut and thus the 



imbryo located. The mass of magma and a portion of 

 the chorion encircling the embryo were removed and cut 

 into serial sections. 



(5) The villi of the chorion are fibrous and macerated, 

 aut normal in shape, with little trophoblast at their tips 

 and with poorly preserved vessels. The epithelium of 

 ;he chorion is greatly macerated. The ccelom is filled 

 with magma and migrating cells. The amnion is present 

 but necrotic. The umbilical vesicle is filled with des- 

 quamated entoderm cells. The embryo is distorted and 

 cramped; epidermis exfoliated at the points where the 

 amnion contains masses of migrating cells. The nervous 

 system is distended and dissociated, and the organs and 



jeritoneal cavity fairly well outlined. The liver is filled 

 vith blood, which forms large islands at points. The 

 ront end of the head is distorted greatly, the eye macer- 

 ated, and the whole head gorged with round cells. 



(6) Decidua absent. Long retention. 



