Bauhaus-Universität Weimar

The Cyclopaedia of Anatomy and Physiology, vol. 2: Dia-Ins
Todd, Robert Bentley
bits a portion of muscle thus infested; a the 
adventitious cyst laid open, exposing the Hy¬ 
datid; a' the adventitious cyst elongated by the 
extension of the head and neck of the inclosed 
hydatid b in the direction of the muscular fibres. 
The cysticercus itself sometimes attains the size 
exhibited in fig. 60, in which a indicates the 
Fig. 60. Fig. 61. 
Magnified head of Cysticerus cellulosœ. 
head, b the neck or body, and c the dilated 
vesicular tail. Fig. 61 exhibits the head 
sufficiently magnified to show the uncinated 
rostellum or proboscis d for irritation and 
adhesion, and the suctorious discs e e for im¬ 
bibing the surrounding nutriment. 
The occurrence of this Entozoon in the Hu¬ 
man Subject appears to be less common in this 
country than on the Continent. In the course 
of five years we have become acquainted with 
only two cases, one in a subject at the Dis¬ 
secting-Rooms of St. Bartholomew’s, the other 
in a subject at the Webb-street School of Ana¬ 
tomy. Rudolphi relates that out of two hun¬ 
dred and fifty bodies dissected annually at the 
Anatomical School of Berlin, from four to five 
were found through nine consecutive years to 
be infested more or less copiously with the 
Cysticercus cellulosœ; for the most part the 
subjects had been of the leucophlegmatic 
temperament, but not affected with ascites or 
anasarca. The muscles most obnoxious to 
the Entozoon in question are the glutcei, psoas, 
iliacus internus, and the extensors of the thigh; 
they have been found also in the muscular 
tissue of the heart, and in parts not muscular, 
as the brain and eye. Soemmering detected 
one specimen of the Cysticercus cellulosœ 
in the anterior chamber of the eye of a young 
woman set. 18.* The following is a more re¬ 
cent account of a specimen which was deve¬ 
loped in the anterior chamber of the eye of a 
patient in the Glasgow Ophthalmic Infirmary. 
“ Case.—From the month of August, 1832, 
till about the middle of January, 1833, when 
she was first brought to Mr. Logan, the child 
had suffered repeated attacks of inflammation 
in the left eye. Mr. L. found the cornea so 
nebulous, and the ophthalmia so severe, that he 
dreaded a total loss of sight. He treated the 
case as one of scrofulous ophthalmia; and after 
the use of alterative medicines, and the appli¬ 
cation of a blister behind the ear, the inflam¬ 
* See Isis, 1830, p. 717, as quoted by Nord- 
maiin, Mikrographis,'he Beiträge zurb’aturgcschictc 
der wirbellosen thiere. 
matory symptoms subsided, leaving, however, 
a slight opacity of the lower part of the cornea. 
After a week, the child was again brought to 
Mr. L., who, on examining the eye, disco¬ 
vered, to his great surprise, a semitransparent 
body, of about two lines in diameter, floating 
unattached in the anterior chamber. This 
body appeared almost perfectly spherical, ex¬ 
cept that there proceeded from its lower edge 
a slender process, of a white colour, with a 
slightly bulbous extremity, not unlike the pro¬ 
boscis of a common fly. This process Mr. L. 
observed to be of greater specific gravity than 
the spherical or cystic portion, so that it always 
turned into the most depending position. He 
also remarked that it was projected or elongated 
from time to time, and again retracted, so as 
to be completely hid within the cystic portion ; 
while this, in its turn, assumed various changes 
of form, explicable only on the supposition of 
the whole constituting a living hydatid. 
“ On the 3d April, when I examined the case, 
I found the cornea slightly nebulous, the eye 
free from inflammation and pain, and the ap¬ 
pearances and movements of the animal exactly 
such as described by Mr. Logan. When the 
patient kept her head at rest, as she sat before 
me, in a moderate light, the animal covered 
the two lower thirds of the pupil. Watching 
it carefully, its cystic portion was seen to be¬ 
come more or less spherical, and then to assume 
a flattened form, while its head I saw at one 
moment thrust suddenly down to the bottom 
of the anterior chamber, and at the next drawn 
up so completely as scarcely to be visible. Mr. 
Meikle turned the child’s head gently back, 
and instantly the hydatid revolved through the 
aqueous humour, so that the head fell to the 
upper edge of the cornea, now become the 
more depending part. On the child again 
leaning forwards, it settled like a little balloon 
in its former position, preventing the patient 
from seeing objects directly before her, or 
below the level of the eye, but permitting the 
vision of such as were placed above. Mr. 
Logan had observed no increase of size in the 
animal while it was under his inspection. Mr. 
Meikle had watched it carefully for three weeks 
without observing any other change than a 
slight increase in the opacity of the cystic 
“ To every one who had seen or heard of Mr. 
Logan’s case, the question naturally occurred, 
Ought not this animal to be removed from the 
eye? Mr. Logan and Mr. Meikle appeared to 
have deferred employing any means for destroy¬ 
ing or removing it ; first, because it seemed to 
be producing no mischief : and, secondly, be¬ 
cause there was a probability that it was a 
short-lived animal, and likely therefore speedily 
to perish and shrink away, so as to give no 
greater irritation than a shred of lenticular 
capsule. Various means naturally suggested 
themselves for killing the animal, such as 
passing electric or galvanic shocks through the 
eye, rubbing in oil of turpentine round the 
orbital region, giving this medicine internally 
in small doses, or putting the child on a course 
of sulphate of quina, or some other vegetable


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