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Akarsu C, Karabulut M, Aydin H, Sahbaz NA, Dural AC, Yegul D, Peker KD, Ferahman S, Bulut S, Dönmez T, Asar S, Yasar KK, Adas GT. Association between Acute Pancreatitis and COVID-19: Could Pancreatitis Be the Missing Piece of the Puzzle about Increased Mortality Rates? J INVEST SURG 2020; 35:119-125. [PMID: 33138658 DOI: 10.1080/08941939.2020.1833263] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND The COVID-19 pandemic caused by SARS-CoV-2 commenced in Wuhan China in 2019 and soon spread worldwide. SARS-CoV-2 enters the cell by binding to the ACE II receptor and begins viral replication. The effects and clinical findings of SARS-CoV-2 on the liver, kidney, heart, gastrointestinal (GI) system and especially lungs have been widely discussed. However, the effects on the pancreas-another organ that also expresses ACE II-have not been studied. METHODS This work prospectively evaluated data from 316 patients who were admitted with a diagnosis of COVID-19 pneumonia. The patients were categorized into three according to the severity of pneumonia (mild, severe, critical). Demographic data, rate of pancreatitis, biochemical parameters, and radiological images from each group were analyzed. The patients were divided into two groups and outcomes were compared: COVID-19 patients with acute pancreatitis (Group P) and without acute pancreatitis (Group C). RESULTS The median age was 54 (18-87), and the median age for patients with acute pancreatitis was 55 (26-84). As an expected finding, we found a positive correlation between advanced age and mortality (p = 0.0003). 12.6% of the patients had acute pancreatitis. While pancreatitis was not seen in patients on mild status, the rate of pancreatitis was 32.5% in critical patients. Hospitalization and mortality rates were higher in patients with COVID-19 accompanied by acute pancreatitis (p = 0.0038 and p < 0.0001, respectively). C-Reactive Protein (CRP) and ferritin were significantly higher in those who had pancreatitis (p < 0.0001). D-Dimer and procalcitonin levels had only a small difference (p = 0.1127 and p = 0.3403, respectively). CONCLUSION Acute pancreatitis alone is a clinical condition that can lead to mortality and may be one of the reasons for the exaggerated immune response developing in the progression of COVID-19. Our results point out that the presence of pancreatic damage triggered by SARS-CoV-2 can deteriorate the clinical condition of patients and the mortality rate may increase in these patients.
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Altinörs N, Senveli E, Dönmez T, Bavbek M, Kars Z, Sanli M. Management of problematic intracranial hydatid cysts. Infection 1995; 23:283-7. [PMID: 8557386 DOI: 10.1007/bf01716287] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The authors report four patients with intracranial hydatic cysts. One patient had a pontine lesion which was punctured and aspirated and the cyst wall removed with a satisfactory outcome. The second patient had multiple cysts which was comparable to meningeomatosis. She had a rapidly deteriorating neurologic condition which proved to be fatal in spite of two consecutive surgical interventions. The third patient had nine lesions although only six were evident on the MRI. All of the cysts were removed, while two cysts ruptured. Multiple paracardial cysts of this patient were surgically removed shortly after the craniotomy. The last patient, again with multiple intracranial hydatid cysts had safe, total removal of all cysts. The first postoperative control CT raised the possibility of recurrence since the CT was highly suggestive of a hydatid cyst. However, this was not confirmed in the follow-up CT examination. Problems and the solutions of management are discussed.
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Abstract
Epithelioid angiomyolipoma is a recently recognized variant of angiomyolipoma, which is characterized by the presence of polygonal cells with densely eosinophilic cytoplasm and varying degrees of nuclear atypia. Only a relatively small number of cases of epithelioid angiomyolipoma of the kidney have been reported in the literature. We report a case of epithelioid angiomyolipoma of the kidney that occurred in a 38-year-old woman. The tumor was composed of diffuse sheets of epithelioid cells, adipocytes and only scattered thick-walled blood vessels. The epithelioid cells had pleomorphic and hyperchromatic nuclei with densely eosinophilic cytoplasm. Hemorrhage, necrotic foci and clusters of foamy macrophages were present. HMB-45, CD117 (c-kit) and CD68 were detected in the epithelioid cells. There was no expression of cytokeratin, epithelial membrane antigen or desmin. The patient showed no evidence of recurrence or metastatic disease 9 months after nephrectomy.
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Erol K, Ulak G, Dönmez T, Cingi MI, Alpan RS, Ozdemir M. Effects of vasoactive intestinal polypeptide on isolated rat urinary bladder smooth muscle. Urol Int 1992; 49:151-3. [PMID: 1466092 DOI: 10.1159/000282414] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The effect of vasoactive intestinal polypeptide (VIP) on the contractile activity of the urinary bladder was investigated in the rat. VIP caused a weak contraction and a small potentiation of carbachol- and acetylcholine-induced contractions. The present results may provide the evidence that VIP could be a modulator in the urinary bladder.
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Abstract
Renal inflammatory pseudotumor is a very rare benign condition of unknown etiology characterized by proliferative myofibroblasts, fibroblasts, histiocytes, and plasma cells. We report a case of inflammatory pseudotumor of the kidney. A 42-year-old female was admitted with the complaint of right flank pain. Computerized tomography revealed a tumor, 7 cm in diameter, in the upper pole of the right kidney. Right radical nephrectomy was performed under the diagnosis of renal cell carcinoma. Histological examination demonstrated a tumor composed of spindle-shaped fibroblastic cells infiltrated by variable numbers of plasma cells, small lymphocytes and histiocytes. The pathologic diagnosis was renal inflammotory pseudotumor.
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Yıldırım D, Tatar C, Doğan O, Hut A, Dönmez T, Akıncı M, Toptaş M, Bayık RN. Post-cesarean scar endometriosis. Turk J Obstet Gynecol 2018; 15:33-38. [PMID: 29662714 PMCID: PMC5894534 DOI: 10.4274/tjod.90922] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 12/15/2017] [Indexed: 01/10/2023] Open
Abstract
Objective: Endometriosis is seen in women during their reproductive period, where stromal tissue and functional endometrial glands of the uterus are observed outside the uterine cavity. In this study, we aimed to identify the clinical characteristics of our patients who underwent surgery with scar endometriosis and to discuss the surgical results in light of the literature. Materials and Methods: A total of 24 patients who underwent surgery and diagnosed as having endometriosis as the result of a pathologic examination were retrospectively evaluated. Results: The mean age of the patients was 31 years. Thirteen presented to general surgery and 11 presented to gynecology outpatient clinics. The pain was cyclical in 19 patients. There was history of cesarean section in 9 patients, twice in 12, and 3 times in three patients. The mean diameter was 39.1 mm on ultrasound, and 37.5 mm on magnetic resonance imaging. Endometriosis was on the left side of the incisions in 13, whereas it was on the right in 11. The mean weight of the lesions was 61.6 grams. Conclusion: The occurrence of endometriosis is supported by the iatrogenic implantation theory. In the event of a mass in the abdominal wall, previous obstetric and gynecologic operations and a history of a painful mass during menstruation periods must be questioned. In the treatment of scar endometriosis, excision is required by obtaining secure margins. If diagnosis can be established preoperatively, unnecessary surgeries can prevented.
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Dönmez T, Kale M, Ozyürek Y, Atalay H. Erythrocyte sedimentation rates in patients with renal cell carcinoma. Eur Urol 1992; 21 Suppl 1:51-2. [PMID: 1425838 DOI: 10.1159/000474890] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The importance of erythrocyte sedimentation rate (ESR) in patients with renal cell carcinomas (RCCa) is still controversial. ESR levels increased in over half of these patients. In this study, ESR levels of 19 patients with RCCa were investigated (85.368 +/- 5.914). In 11 patients in whom carcinomas were only localized in the kidney, the ESR levels were detected as 78.182 +/- 8.686. In 8 patients who had metastasis, the ESR levels were found as 95.250 +/- 6.427. ESR levels were also estimated in 15 healthy adult persons as control group (18.133 +/- 2.180). Mean ESR values were significantly higher in the tumor group than in the control group (p less than 0.01). There was no statistical difference of the ESR levels between the patients who had local RCCa and advanced RCCa (p greater than 0.05, NS). The removal of the tumoral mass caused the ESR levels to diminish. In conclusion, the ESR levels were not a good criteria in patients with RCCa for evaluating either prognosis or metastasis.
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Dönmez T, Erol K, Gürer F, Bayçu C, Açikalin E, Cingi MI. Effects of various acidic and alkaline solutions used to dissolve urinary calculi on the rabbit urothelium. Urol Int 1990; 45:293-7. [PMID: 2219567 DOI: 10.1159/000281723] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
It is well known that infection-induced stones (apatite, struvite), uric acid and cystine calculi in the urinary tract can be managed by the use of certain chemical solutions. We investigated the effects of various acidic and alkaline solutions on the rabbit urothelium. Acidic solutions (pH: 4.2) caused more urothelial injury as compared to alkaline solutions (pH: 7.6). Ureteral injury was more severe than the bladder injury. Magnesium-containing solutions caused less injury to the urothelium.
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Altinörs N, Gürses L, Arda N, Türker A, Senveli E, Dönmez T, Sanli M, Bavbek M, Caner H. Intracranial meningiomas. Analysis of 344 surgically treated cases. Neurosurg Rev 1998; 21:106-10. [PMID: 9795943 DOI: 10.1007/bf02389314] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The authors present 344 (230 females, 114 males) surgical cases of intracranial meningioma. A total of 370 interventions (344 primary procedures, 10 reexplorations for neurologic deterioration, 16 operations for recurrence) were made. Mean follow-up was 38 months. The overall evaluation revealed that 306 (88.95%) patients were completely normal or in a better condition than before operation. 18 (5.23%) were in a worse condition after operation and 20 (5.81%) died. Results suggested that complications and mortality were mostly related to localization and large volume; we also still have problems with aggressive and malignant meningiomas.
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Yildirim A, Başeskioğlu B, Temel HE, Erkasap N, Yenilmez A, Uslu S, Ozer C, Ozkurt M, Dönmez T. Effect of αlipoic acid and silymarin on bladder outlet obstruction. Exp Ther Med 2012; 5:596-602. [PMID: 23403734 PMCID: PMC3570162 DOI: 10.3892/etm.2012.831] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 10/19/2012] [Indexed: 11/24/2022] Open
Abstract
The aim of the present study was to determine whether the treatment of obstructed rat bladders with αlipoic acid (ALA) and silymarin reverses the biochemical and physiological responses to bladder outlet obstruction (BOO). A total of 32 adult Sprague Dawley rats were divided into four groups (n=8 per group): sham (placebo surgery) animals with no treatment (group 1); control animals with surgically induced BOO (group 2); obstructed rats treated with ALA (group 3); and obstructed rats treated with silymarin (group 4). Histological evaluation, bladder weights, collagen structure, TdT-mediated biotin nick end-labeling (TUNEL), inducible nitric oxide sentase (iNOS) mRNA levels, malondialdehyde (MDA) levels and tumor necrosis factor (TNF) levels were investigated. The ALA-treated group had similar bladder weights, collagen levels and TUNEL positivity and decreased iNOS levels compared with the control group, while the silymarin group exhibited further differences. Serum MDA and TNF-α levels were both decreased in the ALA and silymarin groups. ALA treatment reduced the increased oxidative stress and bladder inflammation caused by BOO and may contribute to the protection of bladder function.
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Yıldırım D, Hut A, Tatar C, Dönmez T, Akıncı M, Toptaş M. Prognostic factors in patients with acute mesenteric ischemia. Turk J Surg 2017; 33:104-109. [PMID: 28740960 PMCID: PMC5508232 DOI: 10.5152/ucd.2016.3534] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 04/26/2016] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Acute mesenteric ischemia, one of the causes of acute abdominal pain due to occlusion of the superior mesenteric artery, has a fatal course as a result of intestinal necrosis. There is no specific laboratory test to diagnose acute mesenteric ischemia. The basis of treatment in cases of acute mesenteric ischemia is composed of early diagnosis, resection of intestinal sections with infarction, regulation of intestinal blood flow, second look laparotomy when required, and intensive care support. The aim of this study is to investigate the factors affecting mortality in patients treated and followed-up with a diagnosis of acute mesenteric ischemia. MATERIAL AND METHODS Forty-six patients treated and followed-up with a diagnosis of acute mesenteric ischemia between January 1st, 2008 and December 31st, 2014 at the General Surgery Clinic of our hospitalwere retrospectively evaluated. The patients were grouped as survivor (Group 1) and dead (Group 2). Age, gender, accompanying disorders, clinical, laboratory and radiologic findings, duration until laparotomy, evaluation according to the Mannheim Peritonitis Index postoperative complications, surgical treatment applied, and type of ischemia and outcome following surgery were recorded. RESULTS A total of 46 patients composed of 22 males and 24 females with a mean age of 67.5±17.9 and with a diagnosis of mesenteric ischemia were included in the study. Twenty-seven patients died (58.7%) while 19 survived (41.3%). The mean MPI score was 16.8±4.7 and 25.0±6 in Group 1 and Group 2, respectively, and the difference between the two groups was statistically significant (p<0,001). Fourteen of the 16 (51.9%) patients who had a Mannheim Peritonitis Index score of 26 or higher died while two of them survived (10.5%). Thirteen out of the 30 (48.1%) patients with a Mannheim Peritonitis Index score of 25 or lower died while 17 (89.5%) patients survived. The increased MPI score was significantly correlated withmortality (p=0.004). CONCLUSION Suspicion of disease and early use of imaging in addition to clinical and laboratory evaluations are essential in order to decrease mortality rates in acute mesenteric ischemia. Prevention of complications with critical intensive care during the postoperative period aids in decreasingthe mortality rate. In addition, using the Mannheim Peritonitis Index can be helpful.
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Baseskiogulu B, Canaz F, Kaya C, Dönmez T. The type of lymphocyte infiltration near urothelial carcinoma is diagnostic for chronic lymphocytic leukemia. Urol Ann 2013; 5:47-9. [PMID: 23662012 PMCID: PMC3643325 DOI: 10.4103/0974-7796.106968] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Accepted: 05/17/2011] [Indexed: 12/26/2022] Open
Abstract
T-lymphocytic infiltration near the tumor site is an expected immune response in bladder cancers. However, reports of patients with bladder cancer exhibiting small lymphocytic infiltration of the bladder tissue are very rare in the literature. Here, the patient was presented to our group with hematuria, but subsequently diagnosed as exhibiting invasive bladder cancer and chronic lymphocytic leukemia with suspicious lymphocytic infiltration in a transurethral resection specimen. This case emphasizes the importance of lymphocytic infiltration's nature near urothelial carcinoma.
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Case Reports |
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3 |
13
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Uzman S, Dönmez T. Laparoscopic Abdominal Surgery Under Regional Anesthesia: A Retrospective Evaluation. HASEKI TIP BÜLTENI 2017. [DOI: 10.4274/haseki.58076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Hut A, Tatar C, Yıldırım D, Dönmez T, Ünal A, Kocakuşak A, Akıncı M. Is it possible to reduce the surgical mortality and morbidity of peptic ulcer perforations? Turk J Surg 2017; 33:267-273. [PMID: 29260131 DOI: 10.5152/turkjsurg.2017.3670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 10/17/2016] [Indexed: 11/22/2022]
Abstract
Objective Peptic ulcer perforation is a life-threatening situation requiring urgent surgical treatment. A novel vision in peptic ulcer perforation is necessary to fill the gaps created by antiulcer medication, aging of the patients, and presentation of resistant cases in our era. In this study, we aimed to share our findings regarding the effects of various risk factors and operative techniques on the mortality and morbidity of patients with peptic ulcer perforation. Material and Methods Data from 112 patients presenting at our Training and Research Hospital Emergency Surgery Department between January 2010 and December 2015 who were diagnosed with PUP through physical examination and laboratory and radiological tests and operated at the hospital have been retrospectively analyzed. Patients were divided into three groups based on morbidity (Group 1), mortality (Group 2), and no complication (Group 3). Results Of the 112 patients included in the study, morbidity was observed in 21 (18.8%), mortality in 11 (9.8%), and no complication was observed in 80 (71.4%), who were discharged with cure. The differences between group for the average values of the perforation diameter and American Society of Anesthesiologists, Acute Physiology and Chronic Health Evaluation II, and Mannheim Peritonitis Index scores were statistically significant (p<0.001 for each). The average values for the group with mortality were significantly higher than those of the other groups. Conclusion In this study where we investigated risk factors for increased morbidity and mortality in PUPs, there was statistically significant difference between the average values for age, body mass index, perforation diameter, and Acute Physiology and Chronic Health Evaluation II and Mannheim Peritonitis Index scores among the three groups, whereas the amount of subdiaphragmatic free air did not differ.
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Kaya C, Baseskioglu B, Degirmenci N, Yenilmez A, Baydemir C, Dönmez T. Relationship between Twinkle Artefacts and in vivo Biochemical Composition of Kidney Stones. Urol Int 2016; 96:212-6. [PMID: 26731689 DOI: 10.1159/000441701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 10/12/2015] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Our aim was to predict the chemical composition of kidney stones according to their twinkle artefact (TA) features obtained by in vivo color Doppler ultrasonography and to determine the potential factors affecting the formation and intensity of TAs. MATERIALS AND METHODS A total of 101 patients who met the inclusion criteria were included in the study. All patients were evaluated for TAs using color Doppler ultrasonography. All stones were subjected to chemical analysis. The relationships between the TA and the size and chemical composition of the stone, presence of hydronephrosis and body mass index (BMI) were evaluated statistically. RESULTS According to the results of the chemical analysis, 66 (65.3%) were calcium oxalate stones. It was found that the in vivo TA intensity did not predict cystine and calcium oxalate monohydrate stones (p > 0.05) and the intensity of TAs increases with increasing BMI (p = 0.002). CONCLUSION The present study is the first to show that TAs may not be reliable in overweight patients. The TAs could not predict the chemical composition of stones; so future comprehensive in vivo studies will clarify the role of TAs in the prediction of the stone type preoperatively.
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Baseskioğlu B, Yenilmez A, Acıkalın M, Can C, Dönmez T. Verrucous carcinoma of the renal pelvis with a focus of conventional squamous cell carcinoma. Urol Int 2011; 88:115-7. [PMID: 21968520 DOI: 10.1159/000330906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Accepted: 06/28/2011] [Indexed: 11/19/2022]
Abstract
Verrucous carcinoma (VC) is a rare variant of squamous cell carcinoma (SCC) with an extremely well-differentiated microscopic appearance. It is able to show extensive local invasion, but practically never metastasizes. VCs mostly occur in the oral cavity, larynx, nasal cavity, esophagus, vulva, vagina, anorectal region, penis and skin. VCs sometimes coexist with conventional SCCs, and in these instances they are associated with a higher recurrence rate than pure VCs. The occurrence of VC in the renal pelvis is very rare and to date only 4 cases have been reported. We report here a case of VC with a focus of conventional SCC in the renal pelvis. The patient showed fistula formation by residual tumor in the follow-up period.
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Kesgin YM, Bulut S, Atar B, Sürek A, Dönmez T, Gümüşoğlu AY, Karabulut M. Comparison of textbook outcomes between laparoscopic and open total gastrectomy for gastric cancer. BMC Surg 2025; 25:169. [PMID: 40259290 PMCID: PMC12010602 DOI: 10.1186/s12893-025-02891-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2024] [Accepted: 04/01/2025] [Indexed: 04/23/2025] Open
Abstract
INTRODUCTION While surgery remains an important part of the multimodal treatment of gastric cancer, laparoscopy is increasingly being used in these procedures. The aim of our study is to compare open and laparoscopic total gastrectomy using the concept of 'textbook outcome', which has become popular as an important and comprehensive tool in evaluating the quality of surgical treatment. METHODS Gastric cancer patients underwent total gastrectomy with curative intent between July 2018 and January 2024 in a single center were included in this retrospective study. Exclusion criteria were emergency surgery, recurrent or metastatic disease, conversion to open, robotic gastrectomy. Patients divided to two groups as open and laparoscopic groups and compared in terms of demographic data, tumor characteristics, operative data and textbook outcome. RESULTS A total of 94 patients were enrolled in the study, while the majority of whom were male (73.4%, n = 69). Laparoscopic surgery was found longer but there was no significant difference in the incidence of anastomotic leak and other postoperative complications between the two groups. The textbook outcome rate was 50.8% in the open group while 51.5% in the laparoscopic total gastrectomy group (p = 0.949). The most significant variables associated with the inability to achieve the textbook outcome were readmissions, reinterventions and postoperative complications. CONCLUSION Achievement of textbook outcomes was found to be similar between the open and laparoscopic groups. Laparoscopic total gastrectomy can be safely preferred taking into account patient status, surgeon expertise and center conditions.
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Uzman S, Dönmez T. Laparoscopic abdominal surgery under regional anesthesia: A retrospective evaluation. HASEKI TIP BÜLTENI 2017. [DOI: 10.4274/haseki.3542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Colak A, Benli K, Dönmez T, Onol B. Papillary carcinoma of the sphenoid sinus associated with sphenoid sinus abscess presenting as cavernous sinus syndrome. A case report. JOURNAL OF CLINICAL NEURO-OPHTHALMOLOGY 1990; 10:18-20. [PMID: 2139043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Primary carcinoma of the sphenoid sinus is a rare tumor that may present with dramatic neuro-ophthalmological-symptoms and signs of which spheno-cavernous syndrome is the best known clinical entity. The most frequently encountered histological types of the sphenoid carcinomas are squamous cell carcinoma and papillary carcinoma, in decreasing order of frequency. In this article, a papillary carcinoma of the sphenoid sinus associated with sphenoid sinus abscess is presented. We are not aware of previously reported papillary carcinoma of the sphenoid sinus associated with sphenoid sinus abscess presenting as a cavernous sinus syndrome.
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Case Reports |
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Dönmez T, Bavbek M, Demiralp O, Arda N, Altinörs MN. Anterior pontine hydatid cyst: case report. THE KOBE JOURNAL OF MEDICAL SCIENCES 1998; 44:45-50. [PMID: 10036859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
We report a rare case of anterior pontine hydatid cyst. Diagnosis was established on magnetic resonance imaging (MRI) findings preoperatively and was confirmed during surgery and by laboratory findings of cyst fluid, and section of cyst wall. A classical suboccipital craniectomy was performed, followed by an approach through the floor of the fourth ventricle. After a failed attempt at the Dowling technique, we punctured the cyst, aspirated the contents, then extirpated the cyst membrane. The patient survived suffering only minor morbidity. The surgical technique and pontine myelotomy are discussed.
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Case Reports |
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21
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Yıldırım D, Dönmez T, Aktürk OM, Kocakuşak A, Çakır M, Yurtteri ME. Is there any benefit of harmonic scalpel for hemorrhoidectomy versus conventional diathermy? ARCHIVES OF CLINICAL AND EXPERIMENTAL MEDICINE 2018. [DOI: 10.25000/acem.384326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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22
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Yıldırım D, Tatar C, Doğan O, Hut A, Dönmez T, Akıncı M, Toptaş M, Bayık RN. Post-cesarean scar endometriosis. Turk J Obstet Gynecol 2018. [PMID: 29662714 DOI: 10.4274/tjod.90922.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objective Endometriosis is seen in women during their reproductive period, where stromal tissue and functional endometrial glands of the uterus are observed outside the uterine cavity. In this study, we aimed to identify the clinical characteristics of our patients who underwent surgery with scar endometriosis and to discuss the surgical results in light of the literature. Materials and Methods A total of 24 patients who underwent surgery and diagnosed as having endometriosis as the result of a pathologic examination were retrospectively evaluated. Results The mean age of the patients was 31 years. Thirteen presented to general surgery and 11 presented to gynecology outpatient clinics. The pain was cyclical in 19 patients. There was history of cesarean section in 9 patients, twice in 12, and 3 times in three patients. The mean diameter was 39.1 mm on ultrasound, and 37.5 mm on magnetic resonance imaging. Endometriosis was on the left side of the incisions in 13, whereas it was on the right in 11. The mean weight of the lesions was 61.6 grams. Conclusion The occurrence of endometriosis is supported by the iatrogenic implantation theory. In the event of a mass in the abdominal wall, previous obstetric and gynecologic operations and a history of a painful mass during menstruation periods must be questioned. In the treatment of scar endometriosis, excision is required by obtaining secure margins. If diagnosis can be established preoperatively, unnecessary surgeries can prevented.
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Dönmez T, Caner H, Cila A, Erzen C, Eryilmaz M, Ozcan OE, Erbengi A. Low density in the posterior aspect of the intervertebral disk in the patient with herniated nucleus pulposus. A prospective study of 50 cases. Acta Neurochir (Wien) 1991; 108:64-6. [PMID: 2058428 DOI: 10.1007/bf01407668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
It was previously reported that a low density are in the posterior aspect of the intervertebral disk is an additional computed tomography (CT) finding suggesting a herniated nucleuos pulposus. In this report the incidence of this finding, its correlation with the duration of symptoms and severity of herniation, were studied on 59 herniated intervertebral disks of 50 cases.
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Yıldırım D, Dönmez T, Çakır M, Aktürk OM, Hut A, Kocakuşak A, Çekiç E, Tigrel LZ, Yıldız T. Is the use of intraoperative nerve monitoring an effective method to reduce the rate of permanent recurrent laryngeal nerve paralysis? ARCHIVES OF CLINICAL AND EXPERIMENTAL MEDICINE 2018. [DOI: 10.25000/acem.383033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Oral N, Yurt A, Arda M, Dönmez T, Şekerci Z. Craniopharyngiomas: Analysis of 68 surgical cases. Clin Neurol Neurosurg 1997. [DOI: 10.1016/s0303-8467(97)82394-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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