Your doctor will likely want to
test small pieces (samples) of the changed areas. This is called a biopsy. A biopsy
is often needed to confirm the diagnosis of KS. Depending on where the area is,
different types of biopsies might be done.
The area may be in an
easy-to-reach place, such as on your skin or inside your mouth. Then part or all of
the area might be removed with minor surgery. Numbing medicine (local anesthesia)
will be used. Then your doctor will remove a tiny piece or all of the lesion.
The area may be inside the body,
such as in a lung or in your digestive tract. Then the area might be biopsied during
an endoscopic procedure. Endoscopy is done by putting a long, thin, lighted tube into
your body. For example, lesions in the lungs can be biopsied during a bronchoscopy.
For this, a tube is put down your throat and into your lung. Lesions in the esophagus
can be biopsied during an upper endoscopy. In this case, a tube is put down your
throat and into your esophagus. These types of procedures are usually done while you
are under sedation. Sedation is medicine to relax you and make you sleepy during the
procedure. Numbing medicine might be used as well.
The biopsy samples are sent to a lab. A doctor called a pathologist, who specializes in looking at cells, checks them under a microscope to see if cancer is present.