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What does DALMs stand for?

DALMs stands for dysplasia-associated lesions or masses

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Dysplasia, as defined by the inflammatory bowel disease-dysplasia morphology study group in 1983, is unequivocal neoplastic epithelium (86). Grossly, there are two general patterns; flat and raised (87, 88). Raised lesions, or dysplasia associated lesions or masses (DALMs), are graded similarly, but are treated differently from flat dysplasia, as discussed below. Atypical changes in UC are separated into three distinct categories: negative for dysplasia, indefinite for dysplasia, and positive for dysplasia.
Dysplastic lesions in the setting of IBD can be flat (endoscopically invisible) or raised (51,52), which are both graded as indefinite for dysplasia, low grade dysplasia or high grade dysplasia. Raised lesions are commonly termed dysplasia-associated lesions or masses (DALMs) and can be difficult or impossible to distinguish from sporadic adenomas. However, several studies have shown that adenoma-like lesions in IBD patients, regardless of whether it represents an IBD-associated DALM lesion or a sporadic adenoma, can be adequately managed by polypectomy and continued endoscopic surveillance if there is no coexisting flat dysplasia (53-55).