Neoplasms malignant type

SAR structure-activity relationship, sarcoma A malignant type of neoplasm, a cancerous growth, which arises in the connective tissue of skin etc. saturation analysis Where the amount of radioactivity... 

Malignant mesenchymal neoplasms—various types No Bruner et al. (2001), Evans et al. (1997), ICRT (1993b)... 

Exceptionally, a single study in one species might be considered to provide sufficient evidence of carcinogenicity when malignant neoplasms occur to an unusual degree with regard to incidence, site, type of tumour or age at onset. 

Recently, Caduff et al. (1999) have evaluated abnormalities in p53 and Ki-ra.v in malignant and borderline ovarian tumors of various histological types in paraffin-embedded tissues. The patterns of these genetic alterations in borderline and malignant neoplasms were compared and correlated with cell type and stage. This preliminary molecular analysis suggests that serous borderline tumors have the same molecular features usually associated with malignancy but are unlikely to represent a precursor of invasive serous carcinoma. On the other hand, mucinous borderline tumors may represent a precursor or variant of mucinous carcinoma of the ovary. 

Cancer is a type of neoplasm or tumor. While technically a tumor is defined as only a tissue swelling, it is now used as a synonym for a neoplasm. A neoplasm is an abnormal mass of tissue, the growth of which exceeds and is uncoordinated with the normal tissue, and persists after cessation of the stimuli which evoked it. There are two basic types of neoplasms, termed benign and malignant. The general characteristics of these tumors are defined in Table 24.1. Cancer is the common name for a malignant neoplasm. Neoplasms are composed of two main components ... 

Most neoplasms are classified and named based on (1) the cell or tissue of origin and (2) benign or malignant growth characteristics. There are two basic cell types from which neoplasms may originate mesenchymal cells and epithelial cells (Figure 2). Mesenchymal pertains to mesenchyma (embryonic... 

The presence of tumor-derived DNA in the plasma of cancer patients has inspired researchers to look for other types of circulating nucleic acids. In particular, the similarity between the placenta and a malignant neoplasm has led to the discovery of cell-free fetal DNA in the plasma and serum of pregnant women. Fetal DNA has been shown to be present in the plasma of almost all pregnant women, from the early first trimester onward, and to be present in increasing... 

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