Stavroula A. Paschou, Konstantinos Tzioras, Vasiliki Trianti, Stavroula Lyra, Vasileios-Arsenios Lioutas, Andreas Seretis, Andromachi Vryonidou
BACKGROUND AND IMPORTANCE:This case highlights the fact that acute pituitary apoplexy may be misdiagnosed due to being confused with other entities exhibiting similar symptoms, such as meningitis or subarachnoid hemorrhage. CLINICAL PRESENTATION: A patient in his late 30s presented with sudden and severe frontal headache …
Hidetoshi Ikeda, Masataka Kudo
Objective: We evaluated the long-term effects of growth hormone (GH) on markers of quality of life, glucose metabolism, and lipid metabolism to validate the adequacy of long-term GH replacement therapy for adult GH deficiency (AGHD). Design: Eighty-three of 100 sequentially followed patients who received GH therapy …
Sarantis Livadas, Dimitrios J. Hadjidakis, Maria I. Argyropoulou, Maria Stamatelatou, Dimitrios Kelekis, Sotirios A. Raptis
Acromegaly is caused by excessive growth hormone secretion, usually from a pituitary adenoma. The use of somatostatin analogues as primary or adjunctive therapy has been widely applied in the management of acromegaly. We are aware of only three reported cases of complete shrinkage of a pituitary adenoma after long-term analogue administration…
Polyzois Makras, Dimitris Papadogias, Chrysoula Samara, Athanasios Zetos, Gregory Kaltsas, George Piaditis, Antony C Chu
We describe a 57-year old female with the diagnosis of skull and meningeal Langerhans’ cell histiocytosis who was treated with the combination of azathioprine and methotrexate. Although the skull lesions improved considerably on this regimen, the patient developed diabetes insipidus while the anterior pituitary function remained intact…
Polyzois Makras, Dimitris Papadogias, Grigoris Kaltsas, Nikolaos Kaklas, Georgios Piaditis
Growth without growth hormone (GH) has occasionally been described in patients with organic pituitary pathology, and even more rarely in patients with idiopathic pituitary hormone deficiency. The mechanism of growth without GH remains a mystery. We describe a 17-year old male who grew 38.5 cm in height over a 7-year period, despite the fact that he had established panhypopituitarism…
Fabio Rotondo, Angelo Rotondo, Mark Jentoft, Bernd W. Scheithauer, Luis V. Syro, Jorge H. Donado, James E. Tarara, Kalman Kovacs
OBJECTIVE: In pregnant women, the pituitary is enlarged and the prolactin (PRL) secreting cells increase in size and number. This PRL cell hyperplasia is associated with hyperprolactinemia. The aim of the present work was to investigate adenohypophysial vascularization and immunoexpression of vascular endothelial growth factor …
George Kontogeorgos, Eleni Thodou
OBJECTIVE: The term “null cell” adenoma was first proposed in 1980 to designate pituitary adenomas lacking clinical, biochemical and morphological markers to disclose their cell origin. DESIGN: The aim of this study was to investigate the presence of α- and β-gonadotropin subunits in clinically nonfunctioning pituitary tumors …
Luis V. Syro, Bernd W. Scheithauer, Leon D. Ortiz, Camilo E. Fadul, Eva Horvath, Fabio Rotondo, Kalman Kovacs
The patient was a 70-year-old man with a recurrent pituitary tumor. Three surgeries were performed but the tumor recurred. Based on histologic, immunohistochemical and ultrastructural studies, the diagnosis of oncocytic gonadotrophic pituitary adenoma was made. The tumor was a macroadenoma partly immunopositive for LH …