Objective: Prostate cancer is the second most common cancer in men. Digital rectal examination, transrectal ultrasonography and serum prostate specific antigen represents a diagnostic triad for the detection of prostatic carcinoma. About 50 years ago, Dr. Donald Gleason created a grading system for prostate cancer based on its histologic patterns. Currently, this system maintains its validity with various changes. New updates were made in 2005 and 2014 by the International Society of Urological Pathology. The goal of biopsies is to determine the Gleason score and prognosis in prostatectomy material. The aim of this study was to determine the concordance of the Gleason score, tumor volume and tumor laterality between prostate needle biopsy and prostatectomy materials. Material and Method:The study was performed with 112 patients who had biopsy and prostatectomy materials. The Gleason grades of the tumors have been evaluated with the new grading system. Tumor volumes were calculated by the number of positive blocks while tumor laterality was evaluated as unilateral or bilateral. Statistical analysis was performed on the obtained data.Results: Gleason score, tumor volume and tumor laterality discordance between needle biopsy and prostatectomy materials was found to be statistically significant. However, the concordance increased as the Gleason score and tumor volume increased. Conclusion:Digital examination, serum prostate specific antigen value and needle biopsy together are very sensitive for a prostate adenocarcinoma diagnosis. The Gleason score, localization and volume of the tumors are important for patient follow-up, treatment and prognosis.
We aimed to elucidate the role of intraoperative clean surgical margin (iCSM) determined according to lesion size and duration to obtain appropriate histological clean surgical margin (hCSM) in high-risk basal cell carcinoma (BCC) patients evaluated according to National Comprehensive Cancer Network (NCCN) criteria considering the tumor size and/or location. The contribution of lesion area to determine iCSM was also evaluated. Patients with high-risk BCC requiring surgical management were included. iCSM, hCSM, and clinical variables including sec, age, longest edge, location and area, and follow-up duration were recorded. In total, 96 lesions were evaluated. Lesions were mostly located in the mask area and other face region (93.8%). Lesions located on the nose comprised 50%, 34.1%, and 26.3% in the BCC-5, BCC-7, and BCC-10 lesions, respectively. The hCSMs were positive in 11.5%, 9.1%, and 3.8% of the BCC-5, BCC-7, and BCC-10 lesions, respectively. The deep surgical margin was positive in 15.4%, 4.5%, and 7.7% of the BCC-5, BCC-7, and BCC-10 lesions, respectively. The calculated risk for the positive surgical margin if the BCC-10 lesions were done like the BCC-7 was 15.4%. No recurrence was during follow-up duration. As supported by the findings of the present study, to obtain an adequate hCSM in the high-risk BCC lesions, the iCSM determined according to NCCN recommendations may not be optimal. Nevertheless, after their categorization according to lesion size and disease duration for excision with 5-, 7-, and 10-mm iCSMs, it is possible to obtain a small but important improvement in the outcome of patients.
Ochronosis is the black discoloration of connective tissues seen with alkaptonuria, a metabolic disorder. Alkaptonuria is a rare autosomal recessive metabolic disorder caused by the lack of homogentisic acid oxidase enzyme. Alkaptonuria causes degenerative changes in cartilage, intervertebral disc and other tissues. The patients operated due to lumbar disc herniation in alkatonuria are very few. In this article a case of ochronosis in which the patient was determined after lumbar discectomy is presented.
Glioblastoma (GBM) is the most common brain tumor in adults with a poor prognosis and predominantly astrocytic differentiation. GBM is classified according to the isocitrate dehydrogenase (IDH) mutation according to the World Health Organization (WHO) Brain Tumors 2016 classification. IDH-1 gene mutations are evaluated immunohistochemically (IHC) and molecular methods in current pathology laboratory practice. The aim of this study was to determine the overall survival in GBM cases according to IDH-1 mutation status and Ki-67 proliferation index. Total of 53 patients diagnosed as GBM between 2007-2020 in Sivas
Meningiomas are usually slow-growing grade 1 tumors according to World Health Organization (WHO) classification. Histological and molecular criterias were defined for the determination of meningiomas of high grade and more aggressive. The proliferation activity is also considered among histopathological criterias. A commonly used parameter for determining proliferation activity is the Ki-67 index. This study was formed retrospectively to identife the positivity limit (cut-off) value of the Ki-67 proliferation index in cases diagnosed with meningioma. The Ki-67 indices of a total 190 patients diagnosed with meningioma was compared with the histological degrees of the tumors. The ROC analysis method was used in the statistical analysis for Ki-67 values. The mean Ki-67 proliferation index was found to be 3% for grade 1, 8% for grade 2 and 17% for grade 3 in the cases diagnosed with meningioma in our center. The Ki-67 proliferation index, which can be used in addition to histopathological findings in the distinction of grade 1 and grade 2 meningiomas in our laboratory, was determined as a positivity limit value of 6,5 (p>0,05).
Renal cell carcinomas is 2-3% of all adult cancers. Kidney cancer is currently the seventh most common cancer in men and the tenth most common in women (1). There were 19,3 million new cancer diagnoses and 10 million cancer deaths worldwide in 2020 (2). Survival in renal cell carcinomas has a strong correlation with the stage of diagnosis. 5-year survival in stage 1 tumors is 93%, 72,5% in cases with local lymph node metastases and 12% in metastatic carcinomas cases (3). There is an inverse correlation between age / tumor size and survival. Metastatic lymph node, tumor necrosis and adipose tissue invasion are associated with poor prognosis (4). The study is including 179 renal cell carcinoma cases. The clinical and pathological datas of these cases were retrospectively analyzed from the Cumhuriyet University Hospital patient system. The distribution sex of cases are 111 males (62%) and 68 females (38%). The mean age of the 179 cases was 58,5±11,9 years (range of 21-90). The mean tumor diameter is 5,7±3,4 (range of 1-19 cm). The nuclear grades of cases are 53,1% with low grade and 46,8% with high grade. Radical nephrectomies were evaluated for vascular invasion, ureter invasion, capsule/adipose tissue invasion, lymph node metastasis and adrenal gland metastasis. There is a statistically significant relationship between nuclear grade and vein invasion, microvascular invasion, capsule/adipose tissue invasion (p
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.