Pedunculated polyps are the second shape. They grow on a stalk up from the tissue. The growth sits atop a thin piece of tissue. It gives the polyp a mushroom-like appearance.

Pedunculated polyps as described in this scenario are usually submucosal in origin; thus, initial mucosal biopsy is normal. Submucosal tumors of the esophagus are usually benign.

A pedunculated polyp (Panel A) being removed with a snare around its short stalk (Panel B). Reproduced with permission from Hans Bjorknas (www.gastrolab.net).

Klein and Scarborough 5,6 have presented evidence of lymph-node metastasis from pedunculated polyps of the colon. We agree with them that the presence of cancer in such a polyp is much more ...

T1 colorectal cancer can be mimicked by pseudo-invasion in pedunculated polyps. British guidelines are currently one of the few which recommend diagnostic confirmation of T1 colorectal cancer by a ...

Pedunculated colon polyps. This type grows from a stalk, similar to a mushroom. The head or top of a pedunculated polyp can become cancerous.

Large pedunculated polyps (> 2-3 cm) are often easily removed with standard snare cautery techniques. The difficulty most commonly encountered is when a large polyp has a particularly long stalk ...

In addition, pedunculated polyp shapes were not mentioned, but the pipeline correctly extracted 100% (n = 16) of sessile features observed in the test set. When applied to the 24,225 unseen reports, ...

Both types of polyps are found in the lining (mucosa) of the colon. They can be flat (sessile) or have a stalk like a ...

The figure was derived from‘International consensus on the management of large (≥20 mm) non-pedunculated colorectal polyps: A World Endoscopy Organisation Delphi study’; Djinbachian et al ...

More information: Mahsa Taghiakbari et al, Endoscopic resection of large non-pedunculated colorectal polyps: current standards of treatment, eGastroenterology (2024). DOI: 10.1136/egastro-2023-100025 ...

Unlike pedunculated polyps that are connected by a stalk, sessile polyps are flat or dome-shaped. While sessile polyps can grow in the bladder , stomach, nasal passages , or uterus ...