Webster's New World Medical Dictionary

225
irritable bowel syndrome
10_189283 ch09.qxp 4/18/08 10:16 PM Page 225
http://www.rashidislamiccenter.com
http://www.allofislam.com/

---

any serious organ problems. Diagnosis usually
involves excluding other illnesses. Treatment is
directed toward relief of symptoms. Also known as
spastic colitis, mucus colitis, and nervous colon
syndrome.
ischemia
Inadequate blood supply to a local area
due to blockage of blood vessels leading to that
area. Treatment is directed toward increasing the
circulation to the affected body area.
ischial bursitis
See 
weaver’s bottom.
ischiopubic bar
See 
ischium.
ischiopubic synchondrosis
The central point
of the ischium, which does not close until after the
toddler years. See also 
ischium.
ischium
The bone that makes up the lower-rear
part of the pelvis. Also known as ischiopubic bar
and ischiopubic bone.
islet cell transplantation
A treatment for dia-
betes in which insulin-producing islet cells are
taken from a donor’s pancreas and transferred into
a person with diabetes. Once transplanted, the
donor islets begin to make and release insulin,
actively regulating the level of glucose in the blood.
As with other transplant procedures, immune sup-
pressant drugs must be taken continuously to help
prevent rejection of the donor cells by the host.
islet cell tumor
A tumor that arises from the
islet cells of the pancreas. The islet cells normally
produce insulin and other hormones, and so the
tumors frequently, but not always, produce one of
these hormones. Islet cell tumors can be benign or
malignant and generally cause symptoms related to
the hormone produced by the tumor. Specific types
of islet cell tumors include insulinomas, glucagono-
mas, and gastrinomas. People with a family history
of multiple endocrine neoplasia type I (MEN I) are
at an increased risk for the development of islet cell
tumors. Treatments depend upon the type of tumor
and may include surgery, chemotherapy, and med-
ications to treat the symptoms of hormone excess.