MRI finding of simultaneous coexistence of growth hormone-secreting pituitary adenoma with intracranial meningioma and carotid artery aneurysms: report of a case

Pituitary ◽  
2007 ◽  
Vol 10 (3) ◽  
pp. 299-305 ◽  
Author(s):  
Lorenzo Curto ◽  
Stefano Squadrito ◽  
Barbara Almoto ◽  
Marcello Longo ◽  
Francesca Granata ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Pituitary Adenoma ◽  
Carotid Artery ◽  
Intracranial Meningioma

scholarly journals Coexistence of Growth Hormone-Secreting Pituitary Adenoma and Intracranial Meningioma

JMS SKIMS ◽  
2011 ◽  
Vol 14 (2) ◽  
pp. 75
Author(s):  
Shahnaz Ahmad Mir ◽  
Khalid J Farooqi ◽  
Manzoor Ahmad Bhat ◽  
Souman Koutwal ◽  
Shariq Rashid Masoodi
Keyword(s):  
Growth Hormone ◽  
Pituitary Adenoma ◽  
Intracranial Meningioma ◽  
Pituitary Macroadenoma ◽  
Serum Gh

A 60-year-old woman was referred to our centre for evaluation of Acromegaly. Serum GH level was 60 ng/ml and remained unchanged after OGTT (75 g). Thyroid functions revealed normal TSH and T4 cortisol dynamics showed stimu-lated cortisol of 11 g/dl. MRI revealed pituitary macroadenoma associated with a frontal men ingioma ,JMS 2011;14(2):75  

A growth-hormone-producing pituitary adenoma and an internal carotid artery aneurysm

1982 ◽  
Vol 18 (2) ◽  
pp. 108-111 ◽  
Author(s):  
Tomokatsu Hori ◽  
Kiyoaki Muraoka ◽  
Yasuo Hokama ◽  
Masami Takami ◽  
Yoshikazu Saito
Keyword(s):  
Growth Hormone ◽  
Pituitary Adenoma ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Artery Aneurysm ◽  
Carotid Artery Aneurysm ◽  
Internal Carotid Artery Aneurysm

Association of pituitary adenoma with neuronal christoma: A TEM study

1994 ◽  
Vol 52 ◽  
pp. 232-233
Author(s):  
Eva Horvath ◽  
Kalman Kovacs ◽  
B. W. Scheithauer ◽  
R. V. Lloyd ◽  
H. S. Smyth
Keyword(s):  
Growth Hormone ◽  
Pituitary Adenoma ◽  
Pituitary Tumor ◽  
Nervous Tissue ◽  
Alternative Explanation ◽  
Growth Hormone Releasing Hormone ◽  
Cell Hyperplasia ◽  
Releasing Hormone ◽  
Secretory Neurons

The association of a pituitary adenoma with nervous tissue consisting of neuron-like cells and neuropil is a rare abnormality. In the majority of cases, the pituitary tumor is a chromophobic adenoma, accompanied by acromegaly. Histology reveals widely variable proportions of endocrine and nervous tissue in alternating or intermingled patterns. The lesion is perceived as a composite one consisting of two histogenetically distinct parts. It has been suggested that the neuronal component, morphologically similar to secretory neurons of the hypothalamus, may initiate adenoma formation by releasing stimulatory substances. Immunoreactivity for growth hormone releasing hormone (GRH) in the neuronal component of some cases supported this view, whereas other findings such as consistent lack of growth hormone (GH) cell hyperplasia in the lesions called for alternative explanation.Fifteen tumors consisting of a pituitary adenoma and a neuronal component have been collected over a 20 yr. period. Acromegaly was present in 11 patients, was equivocal in one, and absent in 3.

Co-secreting TSH and growth hormone pituitary adenoma

2019 ◽  
Author(s):  
Hatem Eid ◽  
B Andrabi ◽  
R Ismail ◽  
H Nizar ◽  
G Maltese ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Pituitary Adenoma

Pituitary adenoma producing growth hormone and adrenocorticotropin: a histological, immunocytochemical, electron microscopic, and in situ hybridization study

1998 ◽  
Vol 88 (6) ◽  
pp. 1111-1115 ◽  
Author(s):  
Kalman Kovacs ◽  
Eva Horvath ◽  
Lucia Stefaneanu ◽  
Juan Bilbao ◽  
William Singer ◽  
...  
Keyword(s):  
Growth Hormone ◽  
In Situ Hybridization ◽  
Pituitary Adenoma ◽  
Immunoelectron Microscopy ◽  
Secretory Granules ◽  
Cell Types ◽  
Content Type ◽  
Separate Cell ◽  
Fine Print

✓ The authors report on the morphological features of a pituitary adenoma that produced growth hormone (GH) and adrenocorticotropic hormone (ACTH). This hormone combination produced by a single adenoma is extremely rare; a review of the available literature showed that only one previous case has been published. The tumor, which was removed from a 62-year-old man with acromegaly, was studied by histological and immunocytochemical analyses, transmission electron microscopy, immunoelectron microscopy, and in situ hybridization. When the authors used light microscopy, the tumor appeared to be a bimorphous mixed pituitary adenoma composed of two separate cell types: one cell population synthesized GH and the other ACTH. The cytogenesis of pituitary adenomas that produce more than one hormone is obscure. It may be that two separate cells—one somatotroph and one corticotroph—transformed into neoplastic cells, or that the adenoma arose in a common stem cell that differentiated into two separate cell types. In this case immunoelectron microscopy conclusively demonstrated ACTH in the secretory granules of several somatotrophs. This was associated with a change in the morphological characteristics of secretory granules. Thus it is possible that the tumor was originally a somatotropic adenoma that began to produce ACTH as a result of mutations that occurred during tumor progression.

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