Effectiveness of bendamustine in relapsed or refractory lymphoma cases: a Turkish Oncology Group study.

INTRODUCTION: We aimed to investigate the efficacy and side effects of bendamustine in relapsed/refractory lymphoma patients in Turkey. MATERIAL AND METHODS: In this retrospective study, we included relapsed/refractory Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL) patients who underwent multiple lines of chemotherapy. The primary endpoint was to determine the objective response and toxicity. RESULTS: Ninety-nine patients with a median age of 59.8 years were included in the study. Eighty-one patients had NHL (follicular lymphoma: 10, diffuse large B-cell lymphoma: 27, mantle-cell lymphoma: 18, marginal zone lymphoma: 9, small lymphocytic lymphoma/chronic lymphocytic leukemia: 17) and 18 patients had HL. The patients had previously received a median of three lines of chemotherapy (range: 2-8) except autologous stem cell transplantation (ASCT); 19 patients (HL: 11, NHL: 8) had undergone ASCT. The objective response rate (ORR) was 74.3%, the complete response rate was 57% (= 53), and the partial response rate was 16.6% ( = 19). The overall survival (OS) rate at 1 year was 74.6%. The progression-free survival (PFS) rate at 1 year was 62.5%. The most common side effects were lymphopenia, anemia and neutropenia. Side effects which were observed as grade 3 and higher levels were lymphopenia (14.1%), neutropenia (10.1%) and fatigue (7.1%). CONCLUSIONS: Objective response rate of bendamustine was found to be 74.3% in relapsed/refractory HL and NHL patients. It appears to be an effective option as a salvage treatment for patients who have previously received multiple lines of therapy.

Outcomes of bladder preservation therapy on survival in patients with muscle-invasive bladder cancer. / Resultados de preservación vesical en pacientes con tumor vesical musculoinfiltrante.

INTRODUCTION: The standard of care in muscle invasive bladder cancer is radical cystectomy; however; transurethral resection (TUR) followed by external radiotherapy and systemic chemotherapy demonstrates comparable results with radical cystectomy in terms of local control and survival rates. OBJECTIVES: To evaluate our results of multimodality bladder preservation therapy (BPT) in patients who had muscle-invasive bladder cancer and were reluctant to radical cystectomy. METHODS: The retrospective analysis of twenty-three patients with stage T2 transitional cell bladder cancer that were consecutively treated with BPT was performed. Treatment strategy included radical TUR followed by 3 cycles of cisplatin, gemcitabine combination, and radiotherapy of 64 Gy as adjuvant treatment. The Kaplan-Meier survival estimates and log rank were calculated. RESULTS: Median follow-up time was 58 (15-158) months. Disease-free survival (DFS) and five year overall survival (OS) rates for 23 patients were 55.9% and 63.9%, respectively. Cancer-specific OS was 67%. There were no grade 3 or higher complications. CONCLUSIONS: Our small patient group suggests that BPT can be safely applied in selected cases with bladder cancer or in patients that refused radical cystectomy.

INTRODUCCIÓN: El estándar de tratamiento en el CVMI es la cistectomía radical, aunque la RTUv + RTP+ quimioterapia sistémica demuestra resultados comparables a la cistectomía radical en términos de control local y supervivencia global. OBJETIVOS: Evaluar nuestros resultados en terapia trimodal en cáncer de vejiga músculo-invasivo que rechazan la cistectomía radical. MÉTODOS: Análisis retrospectivo de 23 pacientes con estadio T3 TVMI tratados con preservación vesical (RTUv +3 ciclos de gemcitabina, cisplatino+ 64Gy RTP adyuvante). KM estimados y log Rank fueron calculados. RESULTADOS: La mediana de seguimiento fue de 58 meses (15-158). El intervalo libre de enfermedad y la supervivencia global a los 5 anos fue de 56% y 64%, respectivamente. La Supervivencia cáncer especifica fue de 67%. No se objetivaron complicaciones grado 3 o más. CONCLUSIONES: Nuestra serie de tratamiento preservación vesical demuestra que el uso de este tratamiento en pacientes debidamente seleccionados que no quieren cistectomía radical es apropiado.

Clinicopathologic and Prognostic Differences between Three Different Age Groups (Child/Adolescent, Young Adults, and Adults) of Colorectal Cancer Patients: A Multicentre Study.

BACKGROUND: Colorectal cancer (CRC) is a rare disease amongst children and adolescents. Previous studies have reported a number of differences between children/adolescents, young adults, and adult patients with CRC. However, none of these studies compared these age groups according to their clinicopathologic and prognostic characteristics. In the current study, we compare these three age groups. METHODS: A total of 173 (1.1% of 15,654 patients) young CRC patients (≤25 years) were included in the study. As a control group, 237 adult CRC patients (>25 years) were also included. Patients were divided into three age groups: child/adolescent (10-19 years), young adult (20-25 years), and adult (>25 years). RESULTS: Statistical differences amongst the three groups in terms of gender (p = 0.446), family history (p = 0.578), symptoms of presentation (p = 0.306), and interval between initiation of symptoms and diagnosis (p = 0.710) could not be demonstrated. Whilst abdominal pain (p < 0.001) and vomiting (p = 0.002) were less common in young adults than in other groups, rectal bleeding and changes in bowel habits were relatively less common in adolescents than in other groups. Rectal localisation (p = 0.035), mucinous adenocarcinoma (p < 0.001), and a poorly differentiated histologic subtype (p < 0.001) were less common in the adult group than in other groups. The percentage of patients with metastasis and sites of metastasis (e.g., peritoneum and lung) differed between groups. The median overall survival was 32.6 months in the adolescent group, 57.8 months in the young adult group and was not reached in the adult group (p = 0.022). The median event-free survival of the adolescent, young adult, and adult groups was 29.0, 29.9, and 61.6 months, respectively (p = 0.003). CONCLUSIONS: CRC patients of different age groups present different clinicopathologic and prognostic characteristics. Clinicians should be aware of and manage the disease according to these differences.

The efficacy and reliability of sequential adjuvant anthracycline-based chemotherapy and weekly paclitaxel regimen in human epidermal growth factor receptor 2 negative breast cancer: A retrospective analysis of a multicentre study.

PURPOSE: To analyze the reliability and the effectiveness of chemotherapy and prognostic factors for survival in patients with HER2 (human epidermal growth receptor 2) negative early-stage breast cancer treated with adjuvant sequential anthracycline-based chemotherapy and paclitaxel. METHODS: This analysis retrospectively evaluated the medical records of 756 HER2 negative early-stage breast cancer patients who received adjuvant sequential anthracycline-based chemotherapy and weekly paclitaxel in 15 medical oncology centers in Turkey between 2008-2015. Estrogen receptor (ER), progesterone receptor (PR),HER2,age,tumor size and grade,nodal status,perineural and lymphatic invasion,disease-free survival (DFS) and overall survival (OS) were analyzed. RESULTS: The median patient age was 50 years (22-82). Median follow up period was 46 months (13-82). The rates of recurrence and death detected in this period were 14.8% and 7.4%, respectively. Median OS and PFS were not reached in this period. Five-year DFS and OS rates were 87% and 89%, respectively. Age (OR:0.35,95%Cl 0.12-0.96, p=0.04), PR status (OR:0.44,95%Cl 0.18-1, p=0.05), lymphatic invasion (OR:2.6,95%Cl 0.97-7.4, p=0.05) were independent prognostic factors. Most common grade 3-4 toxicities were fatigue (6.7%), neutropenia (1.7%) and nausea (1.3%). Neutropenic fever developed in 1.8% of the patients and peripheral neuropathy in 16.9%. Dose reduction was necessary for 10% of the patients due to grade 3-4 toxicity, whereas postponement of chemotherapy was necessary for 7% of the patients. CONCLUSIONS: This multicentric retrospective study confirmed that sequential adjuvant therapy with anthracycline-based chemotherapy and paclitaxel for HER2 negative breast cancer is an effective and reliable regimen.

Uptake Patterns of Untreated Primary Gastrointestinal Extranodal Lymphomas on Initial Staging 18F-FDG PET/CT and Metabolic Tumor Parameters.

OBJECTIVE: Non-Hodgkin's lymphomas arising from tissues other than primary lymphatic sites are classified as primary extranodal lymphomas (PEL). PELs of the gastrointestinal system (PGISL) originate from the lymphatic tissues within the gastrointestinal tract. The prognostic value of 18F-FDG PET/CT in lymphomas is high in terms of both overall survival (OS) and disease-free survival (DFS). Our aim was to investigate the uptake patterns and properties of low-grade and high-grade PGISL on primary staging 18F-FDG PET/CT, as well as the prognostic significance of metabolic tumor parameters in high grade PGISL. METHODS: Thirty-nine patients with PGISL were enrolled in this retrospective cohort study between 2004-2015. Primary staging 18F-FDG PET/CT have been performed and quantitative parameters of SUVmax, SUVmean, metabolic tumor volume (MTV), total lesion glycolysis (TLG) have been calculated for all patients prior to treatment. Low-grade and high-grade PGISL were compared in terms of metabolic tumor parameters. Cox regression models were performed to determine factors that correlate with DFS in high-grade PGISL. RESULTS: There were statistically significant differences between high-grade and low-grade PGISL in terms of SUVmax, SUVmean, MTV, TLG, recurrence, mortality, DFS and OS. None of the potential risk factors (sex, age, site, SUVmax, SUVmean, MTV, TLG) for recurrence and metastasis in high grade PGISL was identified as a risk factor on univariate and multivariate Cox regression analysis. CONCLUSION: Metabolic tumor parameters are not predictive markers in high-grade PGISL, especially in diffuse large B cell variant and primary gastric lymphoma. The first implications suggest they will not play a role in patient management.

An overview of high dose chemotherapy with autologous stem cell rescue for germ cell tumors in current practice.

Testicular cancer is a frequent tumor of adolescent and young adult males. Chemotherapy has been reported to provide cure rates as high as 80% even in the presence of advanced testicular cancer. Studies regarding testicular cancer started after the advent of high dose chemotherapy (HDC) plus atologous stem cell rescue (ASCR) for the treatment of solid tumors in 1980s. Testicular cancer is highly responsive to HDC. Einhorn et al. have reported long-lasting remissions reaching up to 40% among patients with platinum-refractory disease. However, the present prospective randomized studies are heterogeneous in terms of patient characteristics and methodology, therefore superiority of HDC plus ASCR to conventional chemotherapies could not be proven. The results of the TIGER study, which is a recent prospective randomized study being conducted by the European Organisation for Research and Treatments in Cancer (EORTC) and the European Society for Blood and Marrow Transplantation (EBMT) aiming to compare HDC plus ASCR to conventional chemotherapy are eagerly expected. In this review, we will evaluate the current use of HDC plus ASCR in patients with relapsed or refractory germ cell tumors.

Comparison of the clinical features and hematopoietic stem cell transplantation outcomes of mediastinal malignant germ cell tumors with nonmediastinal extragonadal placements.

OBJECTIVE: Even though the primary mediastinal extragonadal germ cell tumors (EGCTs) are rare, they are noteworthy in the differential diagnosis of mediastinal masses. In this study, we aimed to identify the clinical features of mediastinal malignant GCTs and compare the results of hematopoietic stem cell transplantation between mediastinal and nonmediastinal malignant EGCTs. METHOD: Data of the patients with EGCT who were treated and underwent hematopoietic stem cell transplantation at our hospital between 1988 and 2015 were retrieved retrospectively. Results were compared between mediastinal and nonmediastinal EGCTs. RESULTS: Data of 65 patients diagnosed with EGCT (37 [56.92%] cases with mediastinal EGCT and 28 [43.07%] cases with nonmediastinal EGCT) were assessed. The clinical stages, frequency of pretransplant status, mean pretransplant time, and mean number of chemotherapy lines before hematopoietic stem cell transplantation were not significantly different between groups. Although the overall survival did not significantly differ between groups, the 5-year survival was significantly higher in mediastinal EGCTs (P=0.02). Yolk sac tumor was significantly more common in mediastinal EGCTs (P=0.05). Mortality rates were higher in seminomas and yolk sac tumors in all cases, higher in embryonal carcinomas in mediastinal EGCT group and higher in yolk sac tumors in nonmediastinal EGCT group. While choriocarcinomas had more aggressive courses in mediastinal EGCTs, seminomas and yolk sac tumors had poorer prognosis in nonmediastinal EGCTs. Short pretransplant time and persistence of elevated posttransplant ßhCG and AFP levels were the significant mortality risk factors both in mediastinal and nonmediastinal EGCTs. CONCLUSION: Mediastinal placement of EGCT was not a poor prognostic factor; furthermore, the 5-year survival was significantly higher in mediastinal EGCTs. According to our knowledge, this is the first study that compares the clinical outcomes of hematopoietic stem cell transplantation of mediastinal and nonmediastinal malignant EGCTs.

Prognosis estimation under the light of metabolic tumor parameters on initial FDG-PET/CT in patients with primary extranodal lymphoma.

BACKGROUND: Non-Hodgkin's lymphomas arising from the tissues other than primary lymphatic organs are named primary extranodal lymphoma. Most of the studies evaluated metabolic tumor parameters in different organs and histopathologic variants of this disease generally for treatment response. We aimed to evaluate the prognostic value of metabolic tumor parameters derived from initial FDG-PET/CT in patients with a medley of primary extranodal lymphoma in this study. PATIENTS AND METHODS: There were 67 patients with primary extranodal lymphoma for whom FDG-PET/CT was requested for primary staging. Quantitative PET/CT parameters: maximum standardized uptake value (SUVmax), average standardized uptake value (SUVmean), metabolic tumor volume (MTV) and total lesion glycolysis (TLG) were used to estimate disease-free survival and overall survival. RESULTS: SUVmean, MTV and TLG were found statistically significant after multivariate analysis. SUVmean remained significant after ROC curve analysis. Sensitivity and specificity were calculated as 88% and 64%, respectively, when the cut-off value of SUVmean was chosen as 5.15. After the investigation of primary presentation sites and histo-pathological variants according to recurrence, there is no difference amongst the variants. Primary site of extranodal lymphomas however, is statistically important (p = 0.014). Testis and central nervous system lymphomas have higher recurrence rate (62.5%, 73%, respectively). CONCLUSIONS: High SUVmean, MTV and TLG values obtained from primary staging FDG-PET/CT are potential risk factors for both disease-free survival and overall survival in primary extranodal lymphoma. SUVmean is the most significant one amongst them for estimating recurrence/metastasis.

Eyelid tumors: clinical data from an eye center in Ankara, Turkey.

INTRODUCTION: The aim of the study was to explore the distribution of eyelid tumors in Ankara, the capital city of Turkey, from a histopathological point of view. MATERIALS AND METHODS: Medical records of 1,502 patients who had eyelid surgery because of tumoral lesions were retrospectively reviewed after obtaining institutional review board approval. A total of 1,541 lesions with histopathologic diagnosis were included. Inflammatory tumoral lesions were excluded. The lesions were categorized into three groups according to the origin: epidermal, adnexal tumors and 'others', including melanocytic, neural and vascular lesions. RESULTS: Of the total of 1,541, 908 lesions were epidermal in origin. Only 22 (1.5%) were malignant, and 6.0% was premalignant lesions such as actinic keratosis and Bowen's disease. Twenty-one of 22 malignant lesions were basal cell carcinoma. There was only one patient with squamous cell carcinoma and no sebaceous cell carcinoma. Among the benign tumors (92.5%), squamous papilloma was the most frequent (21.8% of all lesions). The other frequent lesions were nevus (17.6%), seborrheic keratosis (17.3%), hydrocystomas (10.6%), xanthelasma (7.6%) and epidermal cysts (7.2%). CONCLUSIONS: The results of this study are in accordance with published literature. The absence of sebaceous cell carcinomas needs to be stressed.

Parathyroid adenoma upstaging the lung cancer.

Mediastinal staging of NSCLC with noninvasive methods such as PET/CT can be misleading when a mediastinal disease accompany. Histopathologic confirmation should be made before any treatment plan. Herein, we presented a case of parathyroid adenoma upstaging the lung cancer.

A rare presentation of follicular lymphoma: cerebellar involvement, successfully treated with a combination of radiotherapy and chemotherapy.

The central nervous system (CNS) is an important area of involvement for both high-grade, aggressive primary and secondary lymphomas. Although follicular lymphoma represents a low-grade histology, it may rarely present with CNS involvement. Here, we describe a patient diagnosed with follicular lymphoma who was presented with cerebellar involvement.