Background: Bone marrow is the site of many malignant disorders and it is one of the common places for solid tumors to metastasize. Examination of the bone marrow aspirate and biopsy is a routine procedure performed for assessment of various conditions such as cytopenias, hematologic neoplasms, nonmalignant disorders and metastatic neoplasms. Methods: The patients were referred to the Hema...

spindle cell neoplasms are defined as neoplasms that consist of spindle-shaped cells in the histopathology. spindle cell neoplasms can affect the oral cavity. in the oral cavity, the origin of the spindle cell neoplasms may be traced to epithelial, mesenchymal and odontogenic components. this article aims to review the spindle cell neoplasms of the oral cavity with emphasis on histopathology.  ...

Inflammatory myofibroblastic tumor (VMO) is a rare neoplasm, which currently referred to as mesenchymal neoplasm with intermediate biological potential. The consists of differentiated fusiform cells. frequency occurrence VMO among primary lung neoplasms up 1%. This type the most common tumors in children. can occur both childhood and adulthood. found soft tissues abdominal cavity, pelvic organs...

The concept of field cancerization was first introduced over 6 decades ago in the setting of oral cancer. Later, field cancerization involving histologic and molecular changes of neoplasms and adjacent tissue began to be characterized in smokers with or without lung cancer. Investigators also described a diffuse, nonneoplastic field of molecular injury throughout the respiratory tract that is a...

OBJECTIVES The purpose of this study is to review our experience with the spectrum of neuroendocrine neoplasms of the lung with emphasis on the histopathologic classification and surgical therapy of each class of neoplasm. DESIGN This retrospective review covers the entire spectrum of neuroendocrine neoplasms of the lung over an 11-year period (January 1985 to December 1995) in a university h...

Metastatic tumors of the stomach are rare. Although neoplasms from almost every tissue have been reported to metastasize to the stomach, lung cancer is a rare cause. We report the case of 46-years-old man presented with superior Vena Cava syndrome. Histopathological diagnosis was non-small cell lung cancer with computed tomography-guided needle biopsy of lung. Since gastric symptoms occurred du...

Introduction There are a variety of predictable circumstances in which benign lung lesions are at risk of being interpreted as malignant neoplastic processes. This brief overview will focus on three of them chosen because of their relative frequency in cases received for consultation. The most common diagnostic challenge is separating hyperplasia and/or metaplasia of non-neoplastic respiratory ...

Recent studies have demonstrated that tumor angiogenesis is a prognostic factor for various malignant neoplasms. Specifically, in non-small-cell lung carcinomas (NSCLCs) most reports show an association between neovascularization and vascular endothelial growth factor (VEGF) expression as well as the presence of metastases and survival, although a few reports do not agree with these findings. A...