Identifier: breastitsanomali00deav (find matches)
Title: The breast: its anomalies, its diseases, and their treatment
Year: 1917 (1910s)
Authors: Deaver, John B. (John Blair), 1855-1931
Subjects: Breast Breast X-rays Breast Diseases Breast Neoplasms Radiotherapy
Publisher: Philadelphia, P. Blakiston's Son & Co
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons

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its contents insipissate, and eventually the parasite is

CYSTS OF THE BREAST 317

represented by a circumscribed area of putty-like material surrounded by a membranous
wall that may still show some of the characteristics of the hydatid cyst.
If the cysts rupture either spontaneously or through accident, the result depends
upon a variety of conditions. Thus, in case of the acephalocyst, the injury may result
in the escape and absorption of the fluid and an inflammatory reaction that destroys the
membrane. Or in case of proliferous cysts, the rupture may permit the escape of the
scolices that may be distributed and set up a new multiple infection. The scolices, it
must be remembered, are in an appropriate animal host, and if they are liberated from
the brood capsule, may attach themselves locally, or be carried mechanically or by the
blood to new and suitable situations, where they may become transformed into new
hydatid cysts. That they are well able to do this has been shown both clinically and
Text Appearing After Image:

FIG. 134——Hydatid cysts (echinococcus cysts) of
the heart. (Graham.) Fig. 135.——Hydatid cyst of the breast.
(Graham.)

experimentally. Von Volkmann, at the VI Berliner Chirurgencongress showed that the
scolices that escaped into the peritoneal cavity from a cyst of the abdomen, punctured
for diagnostic purposes, had developed into cysts in the peritoneum. Heuter and Peau
made similar observations. Lihotzky and Gratia found a similar result follow spontane-
ous rupture. Lebedeff and Andrejew found that if the scolices from a hydatid cyst
were introduced into the abdominal cavity of a rabbit, they grew and developed into the
proliferous cysts. It is thus possible that spontaneous rupture, accident or careless
manipulation may scatter the minute scolices and effect metastatic secondary infestation.
This is quite a different matter from the perfect development of the parasite. It is a
mere continuance of the larval stage in the intermediate host or some other intermediate
host. So far as is known, it is only carnivora or closely related animals, and only in
the intestines that the strobile or adult parasite ever develops.

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