The model was subsequently simplified to enable easy sorting of patients into two risk groups, according to the probability of invasion in the definitive specimen.
Allosaurus fragilis, the best-known species, had an average length of 8.5 m, with the largest definitive Allosaurus specimen (AMNH 680) estimated at 9.7 meters long (32 ft), and an estimated weight of 2.3 metric tons (2.5 short tons).
In 349 women with DCIS, predictors of invasion in the definitive resection specimen were identified.
A binary logistic regression with backward elimination method was used to construct a model to assess the probability of having invasive cancer in the definitive resection specimen.
The final pathologic response was assessed using the Miller-Payne grading system [ 33], in which pathologic response is divided into five grades based on comparison of tumor cellularity between pre-neoadjuvant core biopsy and definitive surgical specimen.
For the 349 consecutive patients fulfilling the inclusion criteria, clinicopathologic variables available before surgery that, according to published data and the authors' expectations, may be related to the probability of invasive cancer being detected in the definitive surgical specimen were recorded.
Though the incidence of nodal metastases in pure DCIS is rare (3.7% in a meta-analysis [ 2]), the role of sentinel lymph node biopsy (SLNB) has been debated, because of the possibility of invasion in the definitive surgical specimen, and there are substantial differences regarding its indication worldwide [ 3, 4].
Almost as disorientating as G n' R's embracing of these definitive pomp-rock specimens was the slick power of the performances.
In patients with biopsy diagnosis of ductal carcinoma in situ (DCIS) of the breast, an invasive cancer is often found in the definitive surgical resection specimen.
The aim of the study was to develop a clinical prediction model for assessing the probability of having invasive cancer in the definitive surgical resection specimen in patients with biopsy diagnosis of ductal carcinoma in situ (DCIS) of the breast, to facilitate decision making regarding axillary surgery.
