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skos:definition |
MSH: A malignant cystic or semisolid tumor most often occurring in the ovary. Rarely, one is solid. This tumor may develop from a mucinous cystadenoma, or it may be malignant at the onset. The cysts are lined with tall columnar epithelial cells; in others, the epithelium consists of many layers of cells that have lost normal structure entirely. In the more undifferentiated tumors, one may see sheets and nests of tumor cells that have very little resemblance to the parent structure. (Hughes, Obstetric-Gynecologic Terminology, 1972, p184),NCI: An invasive adenocarcinoma characterized by cystic changes and the presence of malignant glandular cells which contain intracytoplasmic mucin. It may arise from the ovary, pancreas, appendix, and lung.
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