Even the erector pili muscle
and the sudoriparous gland are often found. The hair is partly
free and rolled up into thick balls or is still attached to the
walls. A large mass of sebaceous material is also found in these
cysts. Thomson reports a case of dermoid cyst of the bladder
containing hair, which cyst he removed. It was a pedunculated
growth, and it was undoubtedly vesical and not expelled from some
ovarian source through the urinary passage, as sometimes occurs.
The simpler forms of the ordinary dermoid cysts contain bone and
teeth. The complicated teratoma of this class may contain, in
addition to the previously mentioned structures, cartilage and
glands, mucous and serous membrane, muscle, nerves, and cerebral
substance, portions of eyes, fingers with nails, mammae, etc.
Figure 64 represents a cyst containing long red hair that was
removed from a blonde woman aged forty-four years who had given
birth to six children. Cullingworth reports the history of a
woman in whom both ovaries were apparently involved by dermoids,
who had given birth to 12 children and had three
miscarriages--the last, three months before the removal of the
growths. The accompanying illustration, taken from Baldy,
pictures a dermoid cyst of the complicated variety laid open and
exposing the contents in situ.
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