Squamous cell carcinoma (SCC) and keratoacanthoma (KA) are skin neoplasms of epithelial origin. In contrast to clearly malignant skin neoplasm SCC, KA is an unusual cutaneous neoplasm with a tendency to regression. The distinction between these two neoplasms, on histological grounds only, is still a challenge. In order to investigate further and to assess the possible differences in transformin...

Introduction The aim of the study was to analyze the clinicopathologic characteristics and prognostic factors of hindgut-rectal neuroendocrine neoplasms. Material and methods The study included 38 patients with rectal neuroendocrine tumors who were treated at the Department of Endocrinology, Metabolism and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland from February ...

PURPOSE To better identify the physiology of triple-negative breast neoplasm (TNBN), we analyzed the TNBN gene regulatory network using gene expression data. METHODS We collected TNBN gene expression data from The Cancer Genome Atlas to construct a TNBN gene regulatory network using least absolute shrinkage and selection operator regression. In addition, we constructed a triple-positive breas...

cell free dna (cfdna) is a genetic biomarker that is present in serum or plasma in high concentration in many types of cancer. identification of circu-lating cancer related dna molecules in serum or plasma is a non-invasive tool for early diagnosis and prognosis in many cancer patients. for this review, study selection and data extraction were performed by the authors. detection of point mutati...

the gastrointestinal stromal tumor (gist) is a rare mesenchymal tumor of gastrointestinal (gi) tract. this tumor has tendency to liver metastasis and peritoneal recurrence, however; the primarily lymph node involvement or metastasis is rare. here we reported a 17-years-old girl with multifocal gastric gist and multiple lymph node involvement at presentation and recurrence in celiac lymph nodes....

background lung cancer is one of the most common causes of death worldwide. although smoking and environmental pollutants are the most important risk factors of lung cancer, the role of infectious causes should also be considered in the pathogenesis and progress of lung cancer. objectives this study examined the relationship between helicobacter pylori and lung cancer through serology, real-tim...

this study was performed to determine the incidence and anatomo-pathological aspects of the reproductive system tumors in commercial laying hens. post mortem examination of 1041 laying hens revealed neoplasms of the ovaries and the oviduct in 52 (4.99%) cases. from these, ovarian adenocarcinoma was found in 14 cases, granulosa cell tumor in 7 cases, theca cell tumor in 1 case and marek's diseas...