sessile


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Related to sessile: sessile polyp, sessile lesion

sessile

1. (of flowers or leaves) having no stalk; growing directly from the stem
2. (of animals such as the barnacle) permanently attached to a substratum

sessile

[′ses·əl]
(botany)
Attached directly to a branch or stem without an intervening stalk.
(zoology)
Permanently attached to the substrate.
References in periodicals archive ?
The sessile ciliates were mounted in Gray & Wess between a slide and a coverslip, since this mounting medium was very satisfactory for this group of parasites.
To determine antifungal susceptibilities of sessile cells, biofilms were formed on polystyrene, as described above.
Mucosal prolapse may mimic hyperplastic polyps, sessile serrated adenomas, traditional nonserrated adenomas, inflammatory bowel disease, and other entities [4, 23].
Profes-sor Alistair Jump, from the University of Stirling, said: "To help us predict the impacts of future extreme events, we wanted to see how long it took for beech trees to recover from extreme drought and to compare drought effects on beech with another, more drought-tolerant species, namely sessile oak.
Radiographic examinations like barium studies can detect the polyps as an intraluminal filling defect which may be pedunculated or sessile. The polyps may vary in size and they commonly occur in clusters.
Such situation can create problems especially in young stands where moderate or "genuine " shade-tolerant, competitive, even very "invading" tree species such as hornbeam (Negulescu and Savulescu, 1957; 1965; Stanescu, 1979; Stanescu et al., 1979; Lanier, 1986; Bary-Lenger et al., 1988) or European beech (Sardin, 2008) can dominate and eliminate sessile oak trees.
Of the 2 precancerous subclasses of serrated lesions, by far the most important is the sessile serrated polyp (also called sessile serrated adenoma or sessile serrated lesion).
Details: www.northwaleswildlifetrust.org.uk COED PENDUGWM, WELSHPOOL Majestic sessile oaks have nurtured this quiet corner of Wales for more than 400 years providing leafy cover for plants and animals and creating a wild wood - the likes of which once covered large areas of the country.
Colorectal serrated polyps are histologically characteristic for a serrated or "sawtoothlike" appearance of the crypt epithelium4, they are classified by the World Health Organization (WHO) into three distinct subtypes: Hyperplastic polyp (HP), sessile serrated adenoma/polyp (SSA/P) with or without cytological dysplasia, and traditional serrated adenoma (TSA).5 Unlike adenomas derived from the "adenoma-carcinoma sequence", not all serrated lesions are linked to colorectal cancer.
An osteochondroma is classified into two types, i.e., either sessile or pedunculated and usually occurs within the metaphysis typically projecting away from epiphysis.[1] Osteochondromas usually locate around the knee (50%) in which distal femur is the most common site.[2]
Pedunculated melanomas have previously been grouped with sessile melanomas; a distinction should be made between the two as this may affect patient prognosis and management.