Most Common Types of Colon Polyps

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Most Common Types of Colon Polyps
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• A polyp is a non-cancerous growth found on
  mucous membranes, including those found in the
  digestive tract, nose, mouth, uterus, bladder and
  genitals. They are termed benign, or
  noncancerous, but over time can become cancerous
  if left untreated.

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Like many forms of cancer, polyps are often
discovered during screenings. For colon polyps,
that includes colonoscopies. Polyps of the colon
have two defined shapes, pedunculated and sessile
and are classified by type some common and
others rare.
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8.Lymphoid

• Otherwise known as lymphoid hyperplasia, this is
  a benign growth, generally found in the presence
  of clusters of lymphoid follicles in the colon or
  rectum. Detected on a lymphoid by radiographic
  x-rays are small polypoid lesions, either
  localized or generalized. When symptoms like
  bleeding, pain, bowel movement changes, and
  intussusception arise, diagnosis is made through
  a biopsy, and removal is typically performed to
  eliminate any chance of the polyps being mistaken
  for malignant forms.

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7.Inflammatory

• Inflammatory polyps are benign and do not have
  the capability of becoming cancerous. As the name
  suggests, inflammatory polyps develop in people
  who have conditions of chronic inflammation, such
  as inflammatory bowel disease, Crohns disease,
  and ulcerative colitis. These polyps may be
  characterized by finger-like projections called
  filiform. They are sometimes accompanied by pain,
  and if the growths are large, can cause
  obstruction or folding of one portion of the
  intestine within another (intussusception).

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6. Peutz-Jeghers Polyps

• Peutz-Jeghers is a rare condition, in which
  polyps grow solitary or in multiples. If there
  are several polyps at once, they usually spread
  out sporadically throughout the gastrointestinal
  tract and small bowel. In singular form, they
  often attack the duodenum and small intestine and
  are removed by colonoscopy.

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• They are diagnosed in patients who display signs
  of pain, rectal bleeding, and skin pigmentation.
  Family history is also taken into account.

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5. Juvenile

• The most common form of polyps in children under
  the age of ten is juvenile polyps. Boys have a
  higher rate than girls of developing these
  polyps, and it is the most common type of
  colorectal tumor found in children. They usually
  grow singularly, and in children, are relatively
  large, usually no smaller than one centimeter.
  When they grow in multiples, the condition is
  called juvenile polyposis syndrome and is related
  to family history in twenty to fifty percent of
  cases.

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4. Hyperplastic

• Hyperplastic polyps are another common type and
  are typically benign. The usual treatment is a
  polypectomy, or removal. A camera and electrified
  wire are inserted anally to remove small polyps,
  but larger ones must be removed using a similar
  process, except through the abdomen. Another
  removal process requiring an abdominal incision
  is called a laparotomy. Rarely, the colon and
  rectum are entirely removed if numerous polyps
  inhibit them a procedure called a total
  resection.

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3. Carcinomatous Polyps

• This type of adenoma is cancerous. This
  dangerous polyp is also the rarest type,
  representing about five percent of adenomas found
  in screenings. Although typically surgically
  removed with a polypectomy, there is a risk of
  some of the cancer cells being left behind in the
  colon and spreading to other parts of the body.
  When this occurs, additional surgery is usually
  undertaken, especially when the lymph nodes or
  blood system are involved.

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2. Villous, Tubular, and Tubulovillous Adenomas

• Adenomatous polyps are grouped into three types.
  The two less common forms are the villous and
  tubulovillous adenomas. They represent about
  fifteen percent of colon polyps and are prone to
  developing into cancer more than other types.

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• Noticeably characterized by their flat
  appearance are villous and tubulovillous
  adenomas, whereas tubular polyps are more
  rounded. Tubular, too, can become cancerous if
  not detected early, and are caused by mutations
  inherited genetically or from environmental
  factors.

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1. Adenomatous

• The most common type of colon polyp is the
  adenoma. They can be as small as less than half
  an inch but have the potential to grow, put
  pressure on surrounding organs, and become
  cancerous.

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• This type makes up about seventy percent of
  polyps discovered in the colon, the most common
  organ affected by adenomas. It resembles the
  lining of the colon but has its definite
  differences, particularly in its two patterns
  tubular and villous.

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