Nesrin Uygun
Istanbul University
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Featured researches published by Nesrin Uygun.
Urology | 2002
Hilal Aki; Zafer Baslar; Nesrin Uygun; Mustafa Ozguroglu; Nukhet Tuzuner
We report a case of granulocytic sarcoma of the urinary bladder, with no evidence of hematologic involvement. The patient was initially misdiagnosed and was treated with chemotherapy for transitional carcinoma grade 3. Despite this treatment, the clinical features of the patient progressed, and a repeated biopsy yielded the correct diagnosis. Three cases of granulocytic sarcoma of the urinary bladder have been reported in published studies, with only one of these primary. To our knowledge, ours is the second case of granulocytic sarcoma of the urinary bladder presenting with urologic symptoms but without hematologic findings.
The Journal of Urology | 1999
Bulent Cetinel; Haluk Akpinar; İlter Tüfek; Nesrin Uygun; Vural Solok; Hasan Yazici
PURPOSE We report our clinical experience with Behçets syndrome and bladder involvement. MATERIALS AND METHODS From April 1991 through July 1996, 7 men and 1 woman 25 to 53 years old with Behçets syndrome were evaluated for lower urinary tract symptoms (7) or hematuria (1). Of 8 patients 5 had neurological involvement. Evaluation consisted of history, physical examination, urinalysis and urine culture, excretory urography, urodynamic studies, urethrocystoscopy, bladder biopsies and histopathological examination. RESULTS Cystoscopy revealed bladder ulcer in 1 patient and an indurated, hypervascular lesion in another with bilateral hydronephrosis. The most common urodynamic finding was detrusor overactivity. Of 4 patients with poor compliance 1 had additional sphincteric deficiency. Common histopathological features were moderate and marked thickening of bladder vessel walls. Lymphocytic vascular reaction was present in 2 patients and lymphocytic vasculitis in 1. Clamshell augmentation ileocystoplasty was performed in 3 patients, including 1 who also underwent a sphincter enhancement procedure. The remaining 5 patients received various nonsurgical treatment. CONCLUSIONS Various types of voiding dysfunction relating to bladder and sphincteric components in both phases of micturition can be seen in Behçets syndrome. Voiding dysfunction can be due to either neurological or direct bladder involvement. Augmentation ileocystoplasty is a good treatment option for Behçets syndrome with severe bladder involvement.
Urologia Internationalis | 2000
Oktay Demirkesen; Ozgur Yaycioglu; Nesrin Uygun; Gokhan Demir; Veli Yalcin
We report a case of metastatic malignant melanoma that presented with macroscopic hematuria and lower urinary tract symptoms. Effective palliation of urinary tract symptoms was achieved with transurethral resection of metastatic lesions in the bladder. However, the patient was lost due to widespread disease despite systemic therapy. Solitary or multiple dark blue-black nodular or vegetating lesions encountered during cystoscopy should raise the suspicion of metastasis of malignant melanoma and be investigated accordingly.
Surgery Today | 2001
Tahsin Colak; Turgut Ipek; Melih Paksoy; Erdal Polat; Nesrin Uygun; Bayram Kayabaşi
Abstract The preventive effects of granulocyte colony-stimulating factor, cefephim, and sucralfate on bacterial translocation in experimentally induced acute pancreatitis were investigated. Forty male Wistar albino rats were used in this study. For each rat, the pancreatobiliary ductus was ligated and hence acute pancreatitis was induced. In the control group, no further procedure was performed. Meanwhile, cefephim as an antibiotic, filgrastim, which is a colony-stimulating factor, and sucralfate were given to the other groups at the specified doses. To inhibit bacterial translocation by preserving the bowel barrier, sucralfate, which is known to have a cytoprotective effect on the gastrointestinal system, was used in high doses. Cefephim 30 mg/kg per day (intramuscularly) in group II, filgrastim 10 mg/kg per day (subcutaneously) in group III, and sucralfate 50 mg/kg per day by 8-F feeding tube gavage into the stomach in group IV were given. The number of bacteria translocated into the mesenteric lymph nodes, pancreas, liver, and spleen in the control group significantly increased in comparison with the other groups (P < 0.05). The average number of leukocytes (per mm3) in the control group was significantly higher than that of other groups (P < 0.0001). Regarding the average serum amylase levels, the values of all groups clearly decreased in comparison with the control group (P < 0.0001). Although in the cefephim, filgrastim, and sucralfate groups, (+) pancreatitis was generally seen, in the control group (+++) pancreatitis was detected. Bacterial translocation to the mesenteric lymph nodes and pancreas was partially prevented by filgrastim and sucralfate, and was completely prevented by cefephim. We conclude that in the management of acute pancreatitis, the use of the prophylactic antibiotics, sucralfate and filgrastim, may be advantageous.
Urology | 2000
Oktay Demirkesen; Bulent Cetinel; Ozgur Yaycioglu; Nesrin Uygun; Vural Solok
Ten to twenty percent of paragangliomas occur at extra-adrenal locations and less than 1% are at the urinary bladder. The most common presenting symptom of bladder paraganglioma is hypertensive attacks precipitated by micturition and hematuria. Paraganglioma of the urinary bladder occurring at pregnancy is extremely rare. We present a case of bladder paraganglioma as an unusual cause of early preeclampsia. After termination of the pregnancy, surgical resection was performed and the histopathologic diagnosis of paraganglioma confirmed. At 24 months of follow-up the patient felt well and was normotensive without any foci of paraganglioma. Although rare, paraganglioma must be considered in the differential diagnosis of early preeclampsia.
Acta Histochemica | 2001
Şule Çetinel; Tangül Şan; Bulent Cetinel; Nesrin Uygun; Canan Hürdag
Segments of bowel are used routinely for transplantation in various pathological conditions such as contracted bladders or poorly compliant neuropathic bladders. However, little is known how these intestinal segments adopt to a toxic environment caused by urine. Therefore, the present study was performed to determine early histological changes of ileal mucosa after augmentation cystoplasty. Seven patients with augmentation cystoplasty underwent random cold-cup biopsies of ileal segments after a mean period of 14.4 months after cystoplasty and morphological changes were evaluated using light microscopy and transmission and scanning electron microscopy. Most pronounced features were varying degrees of villous atrophy, increased numbers of Paneth and goblet cells. Severity of atrophic villous changes were not related to the length of the interval between surgery and endoscopic biopsy. These findings may be explained as adaptations of bowel tissue to counteract noxious effects of urine and to maintain its epithelial function in the bladder.
CytoJournal | 2014
Atay Uludokumaci; Sule Canberk; Bilge Baskir Elcin; Nesrin Uygun; Canser Cakalir; Mehmet Canberk
Hydatid disease can occur in any region of the body.[6] Although, it is rare in adrenal glands, this possibility should be kept in mind, especially in endemic areas or in patients with a history of hydatid disease in other organs.
Surgical Endoscopy and Other Interventional Techniques | 1998
Turgut Ipek; Melih Paksoy; T. Colak; Erdal Polat; Nesrin Uygun
Urology | 2005
Burak Özkan; Oktay Demirkesen; Haydar Durak; Nesrin Uygun; Vasif Ismailoglu; Bulent Cetinel
Chest | 1993
Hasan Tüzün; Mustafa Yaman; Bilun Gemicioglu; Kürsad Bozkurt; Nesrin Uygun; Kenan Aktan