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A polyp is an abnormal growth of tissue projecting from a mucous membrane. If it is attached to the surface by a narrow elongated stalk, it is said to be pedunculated; if it is attached without a stalk, it is said to be sessile. Polyps are commonly found in the colon, stomach, nose, ear, sinus(es), urinary bladder, and uterus.
An endometrial polyp or uterine polyp is a mass in the inner lining of the uterus. [1] They may have a large flat base or be attached to the uterus by an elongated pedicle (pedunculated). [2] [3] Pedunculated polyps are more common than sessile ones. [4] They range in size from a few millimeters to several centimeters. [3]
Acrochordon, acrochorda, skin polyp, fibroepithelial polyp, [1] fibrovascular papilloma, soft fibroma, fibroma molle: Several acrochorda in the skin of the lower neck, soft consistency, the bottom acrochordon taking a pedunculated shape: Specialty: Dermatology
Pedunculated polyps can be removed by snare polypectomy. When the polyp is identified, a polypectomy snare is passed over the polyp and around the stalk of the polyp. The loop of the snare is then tightened to grip the polyp stalk, and the polyp is pulled away from the wall of the colon.
Polyps are either pedunculated (attached to the intestinal wall by a stalk) or sessile (grow directly from the wall). [5] [6]: 1342 In addition to the gross appearance categorization, they are further divided by their histologic appearance as tubular adenoma which are tubular glands, villous adenoma which are long finger like projections on the surface, and tubulovillous adenoma which has ...
This extracellular fluid collection causes polyp formation and protrusion into the nasal cavity or sinuses. Polyps which are sessile in the beginning become pedunculated due to gravity. [11] In people with nasal polyps due to aspirin or NSAID sensitivity, the underlying mechanism is due to disorders in the metabolism of arachidonic acid.
A peduncle is an elongated stalk of tissue. Sessility is the state of not having a peduncle; a sessile mass or structure lacks a stalk. [1]In medicine, a mass such as a cyst or polyp is said to be pedunculated if it is supported by a peduncle.
Cervical polyps are finger-like growths, generally less than 1 cm in diameter. [4] [5] They are generally bright red in colour, with a spongy texture. [3]They may be attached to the cervix by a stalk (pedunculated) and occasionally prolapse into the vagina where they can be mistaken for endometrial polyps or submucosal fibroids.