Adenocarcinoma & Osteosarcoma is a form of cancer that occurs in glandular tissue. The tissues affected are part of a larger tissue category known as epithelial. Epithelial tissues like skin, glands, cavities of organs etc. This epithelium comes from the ectoderm, endoderm and mesoderm in the foetus. Adenocarcinoma cells do not necessarily need to be part of a gland but may possess secretory properties. An osteosarcoma (OS) or oestrogenic sarcoma (OGS) is a cancerous tumour in a bone. Specifically, it is an aggressive malignant neoplasm that arises from primitive transformed cells of mesenchymal origin (and thus a sarcoma) and that exhibits osteoblastic differentiation and produces malignant osteoid. Osteosarcomas tend to occur at the sites of bone growth, presumably because proliferation makes osteoblastic cells in this region prone to acquire mutations that could lead to transformation of cells (the RB gene and p53 gene are commonly involved). Due to this tendency, high incidence of osteosarcoma is seen in some large dog breeds. The tumor causes a great deal of pain, and can even lead to fracture of the affected bone. As with human osteosarcoma, bone biopsy is the definitive method to reach a final diagnosis. Osteosarcoma should be differentiated from other bone tumours and a range of other lesions, such as osteomyelitis. Citations are important for a journal to get impact factor. Impact factor is a measure reflecting the average number of citations to recent articles published in the journal. The impact of the journal is influenced by impact factor, the journals with high impact factor are considered more important than those with lower ones. This information can be published in our peer reviewed journal with impact factors and are calculated using citations not only from research articles but also review articles (which tend to receive more citations), editorials, letters, meeting abstracts, short communications, and case reports.