منابع مشابه
Surgical excision margins for primary cutaneous melanoma.
BACKGROUND Cutaneous melanoma accounts for 75% of skin cancer deaths. Standard treatment is surgical excision with a safety margin some distance from the borders of the primary tumour. The purpose of the safety margin is to remove both the complete primary tumour and any melanoma cells that might have spread into the surrounding skin.Excision margins are important because there could be trade-o...
متن کاملDo margins matter? The prognostic significance of positive surgical margins in radical prostatectomy specimens. - PubMed - NCBI
The prognostic significance of positive surgical margins (PSM) in radical prostatectomy (RP) specimens remains unclear. While most studies have concluded that a PSM is an independent adverse prognostic factor, others report that surgical margin status has no effect on prognosis. One reason for these discordant conclusions is the variable number of patients with a PSM who receive adjuvant therap...
متن کاملDo margins matter? The prognostic significance of positive surgical margins in radical prostatectomy specimens.
PURPOSE The prognostic significance of positive surgical margins (PSM) in radical prostatectomy (RP) specimens remains unclear. While most studies have concluded that a PSM is an independent adverse prognostic factor, others report that surgical margin status has no effect on prognosis. One reason for these discordant conclusions is the variable number of patients with a PSM who receive adjuvan...
متن کاملPrimary Decomposition and Associated Primes
If N is a submodule of the R-module M , and a ∈ R, let λa : M/N → M/N be multiplication by a. We say that N is a primary submodule of M if N is proper and for every a, λa is either injective or nilpotent. Injectivity means that for all x ∈ M , we have ax ∈ N ⇒ x ∈ N . Nilpotence means that for some positive integer n, aM ⊆ N , that is, a belongs to the annihilator of M/N , denoted by ann(M/N). ...
متن کاملAssociated Primes and Primary Decomposition
These notes are an attempt to unify the presentations of associated primes and primary decomposition given by Atiyah-Macdonald [1], Bourbaki [2], and Matsumura [3]. Their definitions differ somewhat, and we hope that the ways in which we have chosen to highlight these differences will lead to the reader having a greater understanding of the important concepts described herein. The differing def...
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ژورنال
عنوان ژورنال: Journal of Commutative Algebra
سال: 2014
ISSN: 1939-2346
DOI: 10.1216/jca-2014-6-2-173