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Dive into the research topics where Varol Celik is active.

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Featured researches published by Varol Celik.


Journal of Investigative Medicine | 2009

DNA oxidation and antioxidant status in breast cancer.

Solen Himmetoglu; Yildiz Dincer; Yeliz Emine Ersoy; Bariş Bayraktar; Varol Celik; Tülay Akçay

Purpose Oxidant/antioxidant balance has been suggested as an important factor for initiation and progression of cancer. The objective of this study was to determine 8-hydroxydeoxyguanosine (8-OHdG) level as a marker of oxidative DNA damage, glutathione peroxidase (G-Px), and superoxide dismutase (SOD) activities as antioxidant activity, in sera from women with breast cancer. Methods Forty-nine patients with malign breast tumor were included in the study. Blood samples were collected before the surgical operation. Serum level of 8-OHdG was measured with a competitive enzyme-linked immunusorbent assay kit, SOD, and G-Px activities were measured by spectrophotometric kits. Results 8-Hydroxydeoxyguanosine level and SOD activity were found to be increased in breast cancer group as compared with control group. Glutathione peroxidase activity in the breast cancer group was lower than those in the control group. The ratio of 8-OHdG/G-Px in breast cancer patients was found to be higher than those in the controls. There were correlations between 8-OHdG and CA19-9 (r = 0.77; P < 0.01); age and G-Px (r = −0.84; P < 0.05) in the breast cancer group. Conclusions Data show that serum levels of 8-OHdG and SOD activities are higher in patients with breast cancer. Glutathione peroxidase activity is lower in the breast cancer group. Increased ratio of 8-OHdG/G-Px in breast cancer patients is the evidence for impaired oxidant/ antioxidant balance in breast cancer.


Apmis | 2005

Inflammatory myofibroblastic tumor (inflammatory pseudotumor) of the breast

Sennur Ilvan; Varol Celik; Melih Paksoy; Ilknur Cetinaslan; Zerrin Calay

Inflammatory myofibroblastic tumor of the lung has often been reported but extrapulmonary cases are rare. Here we describe a case of inflammatory myofibroblastic tumor of the breast in a 60‐year‐old woman. This is only the eleventh case reported in the English language literature. The patient was free of disease 85 months after surgery.


Breast Care | 2012

Excision of Nonpalpable Breast Cancer with Indocyanine Green Fluorescence-Guided Occult Lesion Localization (IFOLL)

Fatih Aydogan; Volkan Ozben; Erman Aytac; Halit Yilmaz; Ali Cercel; Varol Celik

Background: Currently employed techniques for the localization of nonpalpable breast lesions suffer from various limitations. In this paper, we report on 2 patients in order to introduce an alternative technique, indocyanine green fluorescence-guided occult lesion localization (IFOLL), and determine its applicability for the surgical removal of this type of breast lesions. Case Reports: Preoperatively, one of the patients had a needle biopsyproven diagnosis of breast cancer, and the other one had suspicious findings for malignancy. Lesion localization was performed within 1 h before surgery under ultrasonography control by injecting 2 ml and 0.2 ml of indocyanine green into the lesion and its subcutaneous tissue projection, respectively. During surgery, the site of skin incision and the resection margins were identified by observing the area of indocyanine-derived fluorescence under the guidance of a near-infrared-sensitive camera. In both cases, the breast lesion was correctly localized, and the area of fluorescence corresponded well to the site of the lesions. Subsequent surgical excision was successful with no complications. On histopathologic examination, the surgical margins were found to be clear. Conclusion: IFOLL seems to be a technically applicable and clinically acceptable procedure for the removal of nonpalpable breast cancer.


The Breast | 2010

Radioguided occult lesion localization (ROLL) for non-palpable breast cancer: A comparison between day-before and same-day protocols

Fatih Aydogan; Volkan Ozben; Varol Celik; Cihan Uras; Gulgun Tahan; Ertugrul Gazioglu; Ali Cengiz; Mehmet Ferahman; Ali Cercel; Mehmet Yilmaz; Metin Halac; Hilal Unal

BACKGROUND Although radioguided occult lesion localization (ROLL) has become a widely accepted technique, the optimal time interval between the radioisotope injection and surgery has not yet been determined. AIM To delineate the effects of time from the injection of the radionuclide until surgery on the ROLL success rate in a patient population diagnosed as having non-palpable breast cancer. METHODS Between December 2004 and May 2009, 75 patients underwent ROLL procedure. The day-before protocol and same-day protocols included 50 and 25 breast cancer patients respectively. RESULTS The two study groups were comparable in terms of age, localization technique, radiological findings and the type of surgical procedures (P > 0.05). No statistically significant difference was noticed in the pathological diagnosis, cancer size and the surgical margin clearance between the two groups (P > 0.05). CONCLUSIONS Same-day injection of the radiotracer was not superior to the day-before injection in ROLL. The day-before protocol can be scheduled for the convenience of both patients and hospital staff.


Oncology | 2005

Secretory carcinoma of the breast. Case report and review of the literature.

Mustafa Ozguroglu; Koray Tascılar; Sennur Ilvan; Gursel Soybir; Varol Celik

We report an elderly case of an indolent breast tumor in a 66-year-old woman. The patient presented with a locally advanced mass in the right breast that was present for 13 years, accompanied by bleeding and ulceration since the last 5 years. She had a modified radical mastectomy with axillary dissection. She was found to have secretory carcinoma with a tumor size of 8 × 4 × 4 cm in diameter. Two out of the 22 removed lymph nodes were involved. The secretory material stained positive with lactalbumin, as well as showed positivity with PAS. The patient received six cycles of adjuvant chemotherapy followed by chest wall irradiation. She is disease free with a follow-up period of 24 months. Preoperative chemotherapy should be primarily replaced by curative surgery in such indolent cancers, despite locally advanced disease.


European Journal of Public Health | 2015

Factors affecting breast cancer treatment delay in Turkey: a study from Turkish Federation of Breast Diseases Societies

Vahit Ozmen; Sukru Boylu; Engin Ok; Nuh Zafer Cantürk; Varol Celik; Murat Kapkac; S. Z. Siretioglu Girgin; Mustafa Tireli; Enver Ihtiyar; Orhan Demircan; Mazhar Semih Baskan; Ayhan Koyuncu; Ismet Tasdelen; Esra Dumanli; Fatih Ozdener; Piotr Zaborek

Background: One of the most important factors in breast cancer (BC) mortality is treatment delay. The primary goal of this survey was to identify factors affecting the total delay time (TDT) in Turkish BC patients. Methods: A total of 1031 patients with BC were surveyed using a uniform questionnaire. The time between discovering the first symptom and signing up for the first medical visit (patient delay time; PDT) and the time between the first medical visit and the start of therapy (system delay time; SDT) were modelled separately with multilevel regression. Results: The mean PDT, SDT and TDT were 4.8, 10.5 and 13.8 weeks, respectively. In all, 42% of the patients had a TDT >12 weeks. Longer PDT was significantly correlated with disregarding symptoms and having age of between 30 and 39 years. Shorter PDT was characteristic of patients who: had stronger self-examination habits, received more support from family and friends and had at least secondary education. Predictors of longer SDT included disregard of symptoms, distrust in success of therapy and medical system and having PDT in excess of 4 weeks. Shorter SDT was linked to the age of >60 years. Patients who were diagnosed during a periodic check-up or opportunistic mammography displayed shorter SDT compared with those who had symptomatic BC and their first medical examination was by a surgeon. Conclusion: TDT in Turkey is long and remains a major problem. Delays can be reduced by increasing BC awareness, implementing organized population-based screening programmes and founding cancer centres.


Archive | 2016

Surveillance of Patients Following Primary Therapy

Varol Celik; Tümay Aydoğan; Mehmet Yilmaz; Nejdet Fatih Yaşar; Mahmut Muslumanoglu

Regular and appropriate follow-up of patients after treatment for breast cancer is an important aspect of comprehensive care. Breast cancer survival has increased due to improvements of treatment, leading to a much higher long-term survival of women diagnosed with breast cancer. The primary purpose of follow-up is often regarded as the early detection of recurrence as well as the detection of second primary tumors along with long-term sequelae of breast cancer treatment.


Journal of Surgical Oncology | 2009

Excision of Axillary Lymph Node Recurrences in Breast Cancer Patients With Axillary ROLL (A-ROLL)

Fatih Aydogan; Volkan Ozben; Deniz Atasoy; Mehmet Yilmaz; Metin Halac; Varol Celik

Conventional surgical exploration to find clinically occult axillary lymph node recurrence of breast cancer can be challenging. The aim of this study was to determine the place of our alternative technique, axillary‐ROLL (A‐ROLL), in previously treated breast cancer patients with nonpalpable axillary lymph node recurrences.


Asian Journal of Surgery | 2016

Bilateral idiopathic granulomatous mastitis.

Mehmet Velidedeoglu; Fahrettin Kilic; Birgul Mete; Mucahit Yemisen; Varol Celik; Ertugrul Gazioglu; Mehmet Ferahman; Resat Ozaras; Mehmet Yilmaz; Fatih Aydogan

OBJECTIVES Idiopathic granulomatous mastitis (IGM) is a benign rare inflammatory pseudotumor. Bilateral involvement of IGM has been reported in a few cases. To our knowledge, this study is the largest series of bilateral cases to date. The goals of this study were to present clinical features of bilateral IGM and to evaluate the results of treatments. MATERIALS AND METHODS We performed a retrospective review of the idiopathic granulomatous mastitis database from 2010 to 2013. Ten female patients who met required histologic and clinical criteria of IGM in both breasts were included in study. Demographic data, clinical findings, medication history, and radiologic findings are presented. RESULTS The mean age at onset of the disease was 38.4 ± 8.3 years (range: 29-52 years). Nine patients had no recurrence during a mean follow-up period of 21 months (range: 11-26 months). Additionally, the median time to second breast involvement was 15.6 months. CONCLUSION Bilateral IGMs have a higher rate of more relapse and greater resistance to medical therapies than do unilateral IGMs. Surgical management should be avoided unless all medical treatment options have been exhausted. Nevertheless, expectant management seems a rational option for the treatment of bilateral IGM.


Journal of Surgical Oncology | 2015

A low cost training phantom model for radio-guided localization techniques in occult breast lesions

Fatih Aydogan; Melissa Anne Mallory; Mustafa Tukenmez; Yasuaki Sagara; Erkan Ozturk; Yavuz Ince; Varol Celik; Tamer Akca; Mehra Golshan

Radio‐guided localization (RGL) for identifying occult breast lesions has been widely accepted as an alternative technique to other localization methods, including those using wire guidance. An appropriate phantom model would be an invaluable tool for practitioners interested in learning the technique of RGL prior to clinical application. The aim of this study was to devise an inexpensive and reproducible training phantom model for RGL. We developed a simple RGL phantom model imitating an occult breast lesion from inexpensive supplies including a pimento olive, a green pea and a turkey breast. The phantom was constructed for a total cost of less than

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