What is the Difference Between Sessile and Pedunculated

The main difference between sessile and pedunculated is that sessile refers to attachment to a surface without a stalk whereas pedunculated refers to attachment to a surface by a narrow elongated stalk known as a peduncle. Furthermore, sessile polyps are flat while pedunculated polyps are mushroom-like.

1. What is the difference between a sessile polyp and a pedunculated polyp?
2. What is the difference between sessile oak and English oak?
3. Are sessile polyps bad?
4. What does it mean when a polyp was sessile?
5. Do oak trees have catkins?
6. Is Oak native to Britain?
7. Do oak trees grow in Scotland?
8. How common are sessile polyps?
9. Is a 5 mm sessile polyp big?
10. What do sessile polyps look like?

What is the difference between a sessile polyp and a pedunculated polyp?

Pedunculated Polyps: Raised, mushroom-like growths that are attached to the surface of the mucous membrane by a long, thin stalk (peduncle). Sessile Polyps: Sit on the surface of the mucous membrane. They are flat and do not have a stalk.

What is the difference between sessile oak and English oak?

The English Oak leaf has a very short stalk, hidden by two small leaves known as “ears” at the base of the leaf. The Sessile Oak leaf has a long stalk. An English Oak acorn, which is on a long stalk called a peduncle. Sessile Oak acorns have no stalk.

Are sessile polyps bad?

Sessile polyps are considered precancerous. They're typically removed during a colonoscopy or follow-up surgery.

What does it mean when a polyp was sessile?

A sessile polyp is one that is flat and does not have a stalk. For this reason, sessile polyps can be more challenging to find and remove during a colonoscopy, which is a procedure that looks at the inside of the colon. A pedunculated polyp is one that has a stalk and looks more like a mushroom.

Do oak trees have catkins?

Oak catkins appear less densely packed than those on other trees. Male catkins are yellow, each around 6cm long and grow in rows, hanging down from the branch in a curtain. The female flowers are tiny with fine filaments protruding to catch the pollen. These later become the acorns.

Is Oak native to Britain?

Oaks of Great Britain

Worldwide there are around 600 species of oak, genus Quercus, all native to the northern hemisphere, but of these are just two species are native to Great Britain and three other non-native oaks are commonly found in these islands.

Do oak trees grow in Scotland?

Oak. This broad spreading tree can reach up to 30 metres in Scotland. ... The oak's acorns are carried on long stalks or 'peduncles'.

How common are sessile polyps?

About 85 percent of polyps are “sessile”: dome-shaped, without a stalk. About 13 percent of polyps are “pedunculated,” hanging from the colon wall on a stalk like a cherry on a stem. About 2 percent of precancerous lesions are flat.

Is a 5 mm sessile polyp big?

If the colonoscopy finds one or two small polyps (5 mm in diameter or smaller), you are considered at relatively low risk. Most people will not have to return for a follow-up colonoscopy for at least five years, and possibly longer.

What do sessile polyps look like?

Polypoid polyps look like a mushroom, but flop around inside the intestine because they are attached to the lining of the colon by a thin stalk. Sessile polyps do not have a stalk, and are attached to the lining by a broad base.