Fine structure of prolactin pituitary adenoma with special reference to annulate lamellae

1979 ◽  
Vol 46 (1-2) ◽  
pp. 163-166 ◽  
Author(s):  
M. Scanarini ◽  
R. Giordano ◽  
S. Mingrino ◽  
N. Pennelli
Keyword(s):  
Fine Structure ◽  
Pituitary Adenoma ◽  
Special Reference ◽  
Annulate Lamellae

scholarly journals Pituitary Melanocorticotrophinoma with Amyloid Deposition

1975 ◽  
Vol 2 (3) ◽  
pp. 199-202 ◽  
Author(s):  
Juan M. Bilbao ◽  
Kalman Kovacs ◽  
Eva Horvath ◽  
Hubert P. Higgins ◽  
William J. Horsey
Keyword(s):  
Fine Structure ◽  
Pituitary Adenoma ◽  
Structural Data ◽  
Amyloid Deposition ◽  
Perivascular Spaces ◽  
Adrenocorticotrophic Hormone ◽  
Cell Of Origin ◽  
Electron Microscopic ◽  
Melanocyte Stimulating Hormone ◽  
Microscopic Features

SUMMARY:The light and electron microscopic features of a pituitary adenoma composed of adrenocorticotrophic hormone (ACTH) and melanocyte stimulating hormone (MSH) cells with perivascular amyloid deposition is reported. Histochemical and fine structural data indicate that this material is APUDamyloid and is present in the extra-cellular perivascular spaces. It is suggested that the differences in fine structure and of distribution of the amyloid in pituitary adenomas is dependent upon the cell of origin.

A Discussion on solar studies with special reference to space observations - The manifold structure of the chromosphere and corona

1971 ◽  
Vol 270 (1202) ◽  
pp. 77-80 ◽  
Keyword(s):  
Magnetic Field ◽  
Fine Structure ◽  
High Resolution ◽  
Field Strength ◽  
Special Reference ◽  
Velocity Fields ◽  
Field Patterns ◽  
Uniform Region ◽  
Determining Factor ◽  
The Magnetic Field

Although the photosphere is a uniform region for scales greater than the granulation, the fact that the magnetic field strength falls off less sharply than the gas pressure leads to strong magnetic influence at greater heights in the solar atmosphere. This magnetic influence leads to non-uniformity and fine structure in the chromosphere and corona. The existence of such structure has been deduced mostly from measurements of photospheric phenomena; in particular, from measurements of photospheric velocity fields (Leighton, Noyes & Simon 1962) and of photospheric magnetic fields (Bumba & Howard 1965). The determining factor would thus appear to be in the photosphere; but visible effects only are produced in the chromosphere and corona. In recent years, high resolution filter photography has enabled us to recognize different regions of the chromosphere, where qualitatively different structure is associated with distinct magnetic field patterns. This progress has been possible because of better Lyot filters, better films and better observing sites; the spectroheliograph has always been limited for high resolution work by the finite slit width and the difficulty of accurate guiding during the long exposures.

Morphological study of noradrenaline innervation in the caudal raphe nuclei with special reference to fine structure

1981 ◽  
Vol 203 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Hiroshi Takagi ◽  
Kazumi Yamamoto ◽  
Sadao Shiosaka ◽  
Emiko Senba ◽  
Kenichi Takatsuki ◽  
...  
Keyword(s):  
Fine Structure ◽  
Special Reference ◽  
Morphological Study ◽  
Raphe Nuclei ◽  
Raphé Nuclei
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