Browsing by Author "Ozgur, Tumay"

Now showing 1 - 2 of 2

Does Cyclin E and P57(Kip2) Expression Have Prognostic and Survival Value in Colorectal Adenocarcinoma?
(2018) Ozgur, Tumay; Sumbul, Ahmet Taner; Yaldiz, Mehmet; Temiz, Muhittin; Akdag, Abdurrahman; https://orcid.org/0000-0002-5573-906X; 31949774; D-4793-2014
Introduction: Colorectal cancer is still one of the main causes of cancer death in the world. There is a continous need for novel biomarkers for diagnose, treatment modalities and follow-up. Cyclin E and p57(KIP2) as the positive and negative regulators of cell cycle seem to be an important target for investigations. Materials and methods: In a retrospective setting, primary colorectal adenocarcinoma cases examined in Mustafa Kemal University, School of Medicine, Pathology Department between 2008-2015 were reviewed. Immunohistochemical expressions of cyclin E and p57(KIP2) in 80 pairs of colorectal carcinoma and adjacent normal mucosal tissues were evaluated and the findings were compared with clinicopathological parameters and survival time. Results: There were no statistically significant difference between two groups both in cyclin E and p57(KIP2) stained tissues (P>0.05). There were 40 (50%) patients in high-expression group and 40 (50%) patients in low-expression group for cyclin E. P57(KIP2) was negative in 55 (68.75%) patients and positive in 25 (31.75%) patients. There were no statistically significant relation between p57(KIP2) and cyclin E expressions with clinicopathologic parameters defined as age, gender, lymphovascular invasion, perineural invasion, depth of invasion, nodal involvement, emergency in operation, perforation before operation and overall survival except that there was significant relation between p57(KIP2) expression and histological grade (P=0.012). Conclusions: Immunohistochemical studies of cyclin E and p57(KIP2) should be performed with larger series of patients supported by more detailed technical research methods to be candidates as predictive markers for treatment modalities and prognostic factors.
Ductal Adenocarcinoma: A Rare Entity of Prostate Gland in a Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma Patient
(2015) Ozgur, Tumay; Rifaioglu, Murat Mehmet; Sumbul, Ahmet Taner; Aydogan, Fusun; Atci, Nesrin
Prostate cancer is the most common malignancy in men and ductal adenocarcinoma is a pathologic subtype with specific histological and clinical features. Seventy-six year-old male patient with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) admitted to our hospital with lower urinary tract symptoms. The last prostate specific antigen (PSA) level was 26 ng/ml and serial transrectal ultrasound guided biopsies were administered and benign prostate hyperplasia and non-specific prostatitis were the results of pathology reports. Due to the persistence of the symptoms transurethral resection of the prostate was performed. In the pathologic evaluation of the material adenocarcinoma focuses without stroma has been observed between the hyperplasic prostate tissues. The tumor has been diagnosed as ductal adenocarcinoma with 4 + 4 Gleason pattern score. Bone scintigraphy was revealed activity uptake on lomber vertebral column due to metastasis. Computerized tomography was revealed previous bilateral inguinal and right iliac lymphadenopathy due to CLL/SLL. Total androgen deprivation therapy and bilateral orchiectomy was applied. After three mounts according to biochemical and imaging results, radiotherapy cure began. Ductal adenocarcinoma is a rare subtype of prostate carcinoma with clinical behavior from that seen in conventional adenocarcinoma. On the other hand it is worth to point out the occurence of this entity as second malignancy during follow-up of CLL/SLL.