In addition, a histological classification of "indefinite for dysplasia" is, at times, provided when cellular atypia is observed but does not clearly indicate dysplasia.
It has been described that anesthetists give different versions of the ASA definition, because the classification is indefinite and far from perfect [ 45, 46].
We demonstrate that various levels of mutational load (no ML, low ML, and high ML) adjacent to tumor suppressor genes exist within each histological classification (intestinal metaplasia, "indefinite for dysplasia", LGD, HGD).
While most mutations found in HGD targets were high clonality, mutations found in non-dysplastic histological classifications (intestinal metaplasia, "indefinite for dysplasia") were typically low clonality.
We selected patients with a histological classification of intestinal metaplasia, "indefinite for dysplasia", and various grades of dysplasia for inclusion in the study.
Using histological features as a guide, we microdissected target cell populations with various histological classifications of BE (intestinal metaplasia, "indefinite for dysplasia", low grade dysplasia, or high grade dysplasia).
High ML may, therefore, provide support for associated interventions, even when histological classification of BE may be less than severe dysplasia (intestinal metaplasia, "indefinite for dysplasia", LGD).
These guidelines recognize the following histological classifications of BE in order of increasing severity: intestinal metaplasia, "indefinite for dysplasia", low grade dysplasia (LGD), and high grade dysplasia (HGD).
The indefinite inner product 〈 ⋅, ⋅ 〉 K on a Krein space K gives rise to a classification of elements of K.
Using Katz, Klemm and Vafa geometric engineering method of N=2 supersymmetric QFT4 and results on the classification of generalized Cartan matrices of Kac Moody (KM) algebras, we study the unexplored class of N=2 CFT4 based on indefinite singularities.
