Neuroradiologic Study of Hamartomas of the Tuber Cinereum and Hypothalamus

1978 ◽  
pp. 17-19
Author(s):  
Shu-Ren Lin ◽  
M. M. Bryson ◽  
R. Gobien ◽  
C. R. Fitz ◽  
Y.-Y. Lee
Keyword(s):  
Tuber Cinereum

Hamartoma of the Tuber Cinereum

2016 ◽  
pp. 271-276
Author(s):  
Françoise Cattin
Keyword(s):  
Tuber Cinereum

ADIPSIA PRODUCED BY HYPOTHALAMIC LESIONS IN THE RAT

1957 ◽  
Vol 35 (1) ◽  
pp. 31-37 ◽  
Author(s):  
D. G. Montemurro ◽  
J. A. F. Stevenson
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Tap Water ◽  
Frontal Plane ◽  
Sprague Dawley ◽  
Stomach Tube ◽  
Tuber Cinereum ◽  
Lateral Hypothalamic ◽  
Electrolytic Lesions ◽  
General Improvement

With the use of the Horsley–Clarke stereotaxic instrument, bilateral electrolytic lesions were placed in the lateral hypothalamic areas of female Sprague–Dawley rats. Changes in food and water intake and body weight were correlated with the histological localization of the lesions. Rats with large lesions in the frontal plane of the middle of the tuber cinereum died within a week of the operation. Food and water administered by stomach tube did not prevent weight loss and death.Two rats developed adipsia which lasted 13 and 16 days respectively; 10 ml. of tap water per day by stomach tube resulted in increases in food intake and body weight during the period of adipsia. These rats had lesions in the lateral hypothalamic areas in the frontal plane of the middle of the tuber cinereum, but these were small and relatively asymmetrical.Another rat refused water from the time of operation until sacrifice (55 days). Administration of 20 ml. per day of tap water caused an increase in food intake and body weight, and a general improvement. Whenever intake of water was not imposed by stomach tube, however, the food intake dropped and body weight was lost. This animal failed to drink spontaneously. The lesions in this animal were more symmetrical, slightly more dorsal, and about 0.75 mm. more posterior than those which produced temporary adipsia. In the rat, an area essential to the regulation of voluntary consumption of water appears to be located in the lateral hypothalamic areas at about the plane of the posterior ventromedial nuclei and the anterior border of the premammillary nuclei.

Hypothalamic Hamartoma in a Dog

1977 ◽  
Vol 14 (2) ◽  
pp. 138-145 ◽  
Author(s):  
R. W. Cook
Keyword(s):  
Cerebrospinal Fluid ◽  
Third Ventricle ◽  
Fluid Pressure ◽  
Hypothalamic Hamartoma ◽  
Tuber Cinereum ◽  
Mammillary Bodies ◽  
Spongiform Change ◽  
The Third ◽  
The Brain ◽  
Rostral Part

A 10-month-old female, Wire-haired Pointing Griffon dog had a hamartoma of the hypothalamus. Episodes of sudden flaccid collapse had increased in frequency and duration for 7 months. Cerebrospinal fluid pressure was normal. A flat, pedunculated mass, 2.5×3.0×0.9 cm, covered the brain stem between the pituitary gland and pons. Its 1.2-cm-diameter connection to the hypothalamus obliterated the mammillary bodies and extended to the tuber cinereum, distorting the hypothalamus and displacing the third ventricle which also divided the rostral part of the mass. The tissue of the hamartoma resembled gray matter with bullous cytoplasmic vacuolation of many neurons, spongiform change, gemistocytosis and microscopic foci of calcification.

Regione sellare: Anatomia, tecnica di studio e patologia

2000 ◽  
Vol 13 (3) ◽  
pp. 327-340
Author(s):  
C. Montaldo ◽  
G. Matta ◽  
S. Marcia ◽  
A. Tirotto
Keyword(s):  
Tuber Cinereum

La diagnostica per immagini della regione sellare riconosce come tecniche di elezione la TC e la RM, che consentono una visualizzazione diretta della ghiandola ipofisaria e delle strutture che la circondano. La regione sellare comprende infatti l'ipofisi e le strutture parasellari, rappresentate dal chiasma ottico, dal tuber cinereum, dai corpi mamillari, dal poligono di Willis, dalle cisterne soprasellari e dai seni cavernosi. Lo studio mediante TC viene eseguito con tecnica “convenzionale” oppure con tecnica “TC Dinamica”. Lo studio mediante RM viene eseguito prevalentemente mediante “S.E.” ma anche con tecnica “G.E. 3D” e con tecniche di “Dinamiche RM” (Fast S.E. e G.E.). Vengono successivamente esaminate le più comuni patologie interessanti la regione sellare nei loro aspetti clinico-patologici, esaminando le loro principali caratteristiche di imaging.

Hamartomas of the tuber cinereum

1983 ◽  
Vol 25 (2) ◽  
pp. 93-101 ◽  
Author(s):  
C. Diebler ◽  
G. Ponsot
Keyword(s):  
Tuber Cinereum
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