Chromosomal characteristics of human pituitary adenomas.

摘要: The chromosomes in 7 human pituitary adenomas were studied fixations directly from the tumours. A normal, diploid stemline was only found two adenomas; other 5 tumours had near-diploid and near-triploid stemlines, one adenoma of group a marker its stemline. In ordinary chromosome groups deviations engaged C F chromosomes, particularly. This pattern different that meningomas neurinomas. common occurrence chromosomal abnormalities these three benign tumor types contrast to usually observed lesions man (precancerous conditions excluded). Thus, present study demonstrates some may show without any obvious relation malignant transformation. Furthermore, seems have characteristics tumour types.