The projecting tumour, a little below the right mamma, which contained a
solitary hydatid, was believed to correspond with the lower of the two project-
ing tumours on the right side of the abdomen in Eig. 15.
the colon could not be avoided. "When the integuments were at
length careMly dissected off (Kg. 17), the whole, except the
parts where the tympanitic sound had been elicited, proved to be
one mass of cysts, covered with a firm dense membrane, which so
closely bound them down that it looked like a large lobulated mass,
rather than a collection of cysts. On opening the cysts, some of



ACEPHALOCYST HYDATIDS.
33



them were found to contain a solitary hydatid, having no others
within it, while the greater part were full of small hydatids, pre-
senting all the forms and peculiarities which are ever observable, and
which have already been minutely described in the foregoing cases.
In general, it might be remarked, that the skin and debris of the



Fig. 17.
rig. 17 represents tlie abdomen seen in fig. 16 laid open, and the integu-
ments dissected carefully from the hydatids, to which the whole parieties were
closely and firmly glued by thick deposits of adyentitious structure. The dis-
proportion between the abdomen and the thorax, encroached upon as it was by
the disease, is very remarkable.
hydatids, which by compressiom had lost their vitality, bore a large

3



34 ON ABDOMINAL TUMOTJES.
proportion to those which were entire^ spherical, and transparent.
