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Primary primitive neuroectodermal tumors (PNETs) are extremely rare in the lung and especially in adult women. We describe a case of PNET of the lung with aggressive behavior in 31-year-old woman. Diagnosis was based on histopathological and immunohistochemical studies, and confirmed by molecular genetic analysis of chromosome rearrangements in the EWSR1(More)
BACKGROUND Invasive ductal and lobular carcinomas (IDC and ILC) are the most common histological types of breast cancer. Clinical follow-up data and metastatic patterns suggest that the development and progression of these tumors are different. The aim of our study was to identify gene expression profiles of IDC and ILC in relation to normal breast(More)
BACKGROUND It is mandatory to confirm the absence of mutations in the KRAS gene before treating metastatic colorectal cancers with epidermal growth factor receptor inhibitors, and similar regulations are being considered for non-small cell lung carcinomas (NSCLC) and other tumor types. Routine diagnosis of KRAS mutations in NSCLC is challenging because of(More)
AIMS Invasive ductal and lobular carcinomas are the most common histological types of breast cancer. The loss of E-cadherin expression has been suggested to be the most reliable marker for invasive lobular carcinoma. The aim of our study was to identify the diagnostic usefulness of novel markers in the differentiation of these tumor types. METHODS We(More)
INTRODUCTION Gastrointestinal stromal tumors are among the most frequent mesenchymal tumors of the gastrointestinal tract; the incidence of these tumors in the esophagus is less than 5%. Prognosis depends on localization, size, mitotic activity and possible invasion of surrounding structures. Minimally invasive surgery may be maximally utilized for removal(More)
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