Browsing by Author "Serefhan, Alpay"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Diagnosis and Management of Pituitary Abscess: A Case Series and Review of the Literature
    (TURKISH NEUROSURGICAL SOC, 2013-01-01) Altas, Murat; Serefhan, Alpay; Silav, Gokalp; Cerci, Ajlan; Coskun, Kerim Kenan; Elmaci, Ilhan
    AIM: Pituitary abscess is a disorder characterized with central nervous system (CNS) infection, mass effect, and endocrine dysfunction. These abscesses generally occur due to hematogenous spread in conditions such as paranasal sinusitis, sepsis, and where the blood brain barrier breaks down. This paper aims to discuss four cases of preoperatively diagnosed pituitary abscess in the light of the literature. MATERIAL and METHODS: Following detailed clinical and hormonal examinations and imaging tests, 210 cases of pituitary adenoma and other sellar pathologies were operated on at the Neurosurgery clinic of Goztepe Training and Research Hospital. RESULTS: All the patients showed fever, systemic signs of toxemia and endocrine dysfunction at the time of diagnosis. In these cases, a preoperative diagnosis of the disease was made thanks to characteristic MRI findings. The four cases were operated by the transnasal transsphenoidal approach and histopathological and microbiological studies were performed for surgical specimens. CONCLUSION: Pituitary abscesses are rare disorders responsible for a high mortality risk. Mortality and morbidity can be reduced by early surgical drainage and appropriate antibiotic treatments. Additionally, these cases should be closely followed-up in terms of pituitary insufficiency, surgical complications and infection.
  • Thumbnail Image
    Item
    Investigation of ACE Genome Insertion/Deletion Correlation with Immunohistochemical Profile in Pituitary Adenomas
    (TURKISH NEUROSURGICAL SOC, 2013-01-01) Altas, Murat; Bayrak, Omer Faruk; Serefhan, Alpay; Silav, Gokalp; Coskun, Kerim Kenan; Cerci, Ajlan; Isik, Nejat; Elmaci, Ilhan
    AIM: The deletion polymorphism of the angiotensin-converting enzyme (ACE) genome causes neoplastic development in several organs by increasing the angiotensin 2 (A2) formation. In this study, we aimed to identify the ACE genome insertion/deletion polymorphism in pituitary adenomas and to compare it with the control group. MATERIAL and METHODS: Patients operated for pituitary adenomas were included in the study. Genomic DNA was extracted from tumoral tissues and peripheral blood samples of the patients by using the Miller method. Primary sequence was selected via targeting the polymorphic region of intron 16 of ACE genome 17q23. DNA samples were multiplied by PCR using HACE3s and HACE3as primers. RESULTS: Twenty-one operated cases were studied. In the study group