Results 261 to 270 of about 235,360 (304)

Ultrastructure of spontaneous pituitary neoplasms in the rat

Journal of Comparative Pathology, 1980
Abstract Spontaneous pituitary neoplasms of 19 old Sprague-Dawley rats were examined by electron microscopy. The ultrastructure suggested that the chromophobe adenomata were derived mainly from mammotropic cells and that they were functionally active.
S K, Majeed, C, Gopinath, G, Magnusson
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Xanthogranulomatous Hypophysitis Mimicking a Pituitary Neoplasm

Endocrine Pathology, 2004
Hypophysitis is an inflammatory disease of the pituitary gland that clinically and radiologically mimics pituitary tumors. We report here a case of xanthogranulomatous hypophysitis mimicking a pituitary neoplasm.A 65-yr-old woman presented with weight loss, fatigue, and visual disturbance.
Shunichi, Yokoyama, Toshiaki, Sano, Kenichiro, Tajitsu, Kazuhiro, Kusumoto   +3 more
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KI-67 IN PITUITARY NEOPLASMS

Neurosurgery, 2009
KI-67, A MARKER of cellular proliferation, has been studied extensively in pituitary neoplasia. It is of relevance to various clinicopathological parameters, including tumor subtype, size, invasiveness, and recurrence, as well as patient age and sex. Generally, pituitary tumors behaving aggressively have increased Ki-67 labeling indices.
Fateme, Salehi, Anne, Agur, Bernd W, Scheithauer, Kalman, Kovacs, Ricardo V, Lloyd, Michael, Cusimano   +5 more
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Pituitary Neoplasms in two Horses

Zentralblatt für Veterinärmedizin Reihe A, 1963
SummaryTwo pituitary adenomas in older geldings are described: a chromophobe adenoma with severe acute hemorrhages among the neoplastic cells and an adenoma originating from the pars intermedia with a lesser degree of disseminated recent hemorrhages. Invasiveness was not observed, but, both tumors caused hemorrhages and pressure in the hypothalamic ...
Huseyin K. Urman, H. Cahit Ozcan, Sait Tekeli   +2 more
openaire   +1 more source

Biomarkers of Pituitary Neoplasms: A Review (Part II)

Neurosurgery, 2010
Several new markers have shown a capacity to predict the clinicopathological behavior of pituitary neoplasms; these markers have shown potential to correlate with tumor subtype and size and patient age and sex. These various markers are involved in a host of cellular functions, including cell-cycle progression, cell proliferation, apoptosis, cell ...
Fateme, Salehi, Anne, Agur, Bernd W, Scheithauer, Kalman, Kovacs, Ricardo V, Lloyd, Michael, Cusimano   +5 more
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MEDICAL TREATMENT OF PITUITARY NEOPLASM

JAMA: The Journal of the American Medical Association, 1925
The frequency of unsuccessful operations on tumors of the hypophysis has led us to search for a method of approach that is less hazardous. Two fields seemed open—that of glandular therapy and that of radiotherapy. The average benign enlargement of the pituitary gland will proceed along a certain stereotyped course.
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Psychological Changes Associated with Giant Pituitary Neoplasms

Archives of Neurology And Psychiatry, 1955
Although nearly 600 articles concerning pituitary adenomas and craniopharyngiomas have been listed in the Quarterly Cumulative Index Medicus since its first volume, in 1916, only 13 are primarily concerned with the psychological changes which these lesions may produce if they expand upward to an unusual size.
J C, WHITE, S, COBB
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Biomarkers of pituitary neoplasms.

Anticancer research, 2013
In a wide spectrum of tumors, cell proliferation, vascularity, apoptosis, cell adhesion, and cell-cycle progression may indicate tumor progression. In this review article, the literature regarding apoptotic markers and p53, as well as cyclooxygenase-2, galectin-3, and pituitary tumor-transforming factor, proliferative markers, angiogenesis, including ...
Aydin, Sav, Fabio, Rotondo, Luis V, Syro, Bernd W, Scheithauer, Kalman, Kovacs   +4 more
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Primary lymphoma of pituitary gland: A neoplasm of acquired malt?

Endocrine Pathology, 1997
A 66-yr-old man presented with presyncopal episodes, dizziness, anorexia, nausea, and weight loss and was noted to have low blood pressure with a postural drop and sparse eyebrows. Laboratory investigations revealed evidence of hypopituitarism. Magnetic resonance imaging (MRI) revealed a non-enhancing mass arising from the adenohypophysis.
Samaratunga, H, Perry-Keene, D, Apel, RL
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Neoplasms of the Anterior Pituitary

Neurosurgery, 1978
K S, McCarty, D E, Bredesen, F S, Vogel
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