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PURPOSE The role of postmastectomy radiotherapy (PMRT) in clinically node-positive, stage II-III breast cancer patients with pathological negative nodes (ypN0) after neoadjuvant chemotherapy (NAC) remains controversial. METHODS A total of 1560 clinically node-positive, stage II-III breast cancer patients treated with NAC and mastectomy who achieved ypN0(More)
BACKGROUND The effect of breast cancer subtype on margin status after lumpectomy remains unclear. This study aims to determine whether approximated breast cancer subtype is associated with positive margins after lumpectomy, which could be used to determine if there is an increased risk of developing local recurrence (LR) following breast-conserving surgery.(More)
PURPOSE We aimed to assess the effect of age on survival according to estrogen receptor (ER) and progesterone receptor (PR)-defined lobular breast cancer subtype in a wide age range. METHODS 43,230 invasive lobular breast cancer women without comorbidities diagnosed between 2004 and 2011 in the National Cancer Database (NCDB) were analyzed. The effects of(More)
Olfactory neuroblastoma (ONB) is a malignant neoplasm centered along the roof of the nasal cavity near the cribriform plate. Although metastasis of this tumor has been reported, non-contiguous spread to the dura is rare. Here, we report the largest series of intracranial meningeal metastases of ONBs from M.D. Anderson Cancer Center and the University of(More)
Cholangiocarcinoma (CCA) characterized by late diagnosis and poor outcomes represents the commonest malignancy of biliary tract. Understanding metachronous cancer associations may achieve earlier detection. We aimed to evaluate the risk of subsequent CCAs among common cancer survivors. The National Cancer Institute's Surveillance, Epidemiology, and End(More)
PURPOSE Recent studies have revealed that breast-conserving surgery (BCS) with radiotherapy (RT) led to better survival than mastectomy in some populations. We compared the efficacy of BCS+RT and mastectomy using the National Cancer Database (NCDB, USA). RESULTS A total of 160,880 patients with a median follow-up of 43.4 months were included. The(More)
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