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James Norman, Douglas Politz
BACKGROUND: Determining the physiologic activity (hormone production) of individual parathyroid glands can provide tremendous guidance during parathyroidectomy. METHODS: A 6.5-year prospective study of 5,000 patients with sporadic, non-multiple endocrime neoplasia (MEN) primary hyperparathyroidism who underwent surgery without frozen section or parathyroid hormone (PTH) assays was conducted. Patients who had a frozen section were not included; the removal of parathyroid glands was determined solely by the physiologic activity of each gland as determined by contained radioactivity...
March 2009: Annals of Surgical Oncology
A Zimmermann, F Truss
Flow-through cytophotometric DNA determinations with the ICP 11 were carried out in nuclei of testes stained with ethidium bromide. The histograms of healthy testicles showed two haploid peaks (1 CI/1CII), a diploid (2C) and a tetraploid peak (4C). The more spermatogenesis was histologically reduced, the more the height of the haploid and tetraploid peaks and of the graph in the area of the S-phase was decreased. It resulted from a relative increase of diploid cells of testicular parenchyma. Conclusions can be drawn from the DNA histogram on the degree of inhibition of spermatogenesis, but not on its etiology (inflammation, malposition, endocrime disorders)...
December 1980: Analytical and Quantitative Cytology
T A Webb, S G Sheps, J A Carney
We studied the gross and microscopic pathology of the adrenal gland in 69 cases of sporadic phenochromocytoma in order to develop a profile of the neoplasm to compare with that of pheochromocytoma observed in the syndrome of multiple endocrine neoplasia, type 2 (MEN 2). The results showed that sporadic pheochromocytoma was a unicentric (93%), unilateral (100%) neoplasm, which was associated with normal extratumoral adrenal medulla (100%). The findings contrast with those encountered in the adrenal gland in MEN 2, in which the tumor involvement is frequently multicentric, usually bilateral, and associated with extratumoral medullary hyperplasia in cases of early involvement...
April 1980: American Journal of Surgical Pathology
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