Gaps in pre-rituximab hepatitis B screening: an institutional experience.

The aim of the study was to evaluate the pretreatment workup of patients referred to our tertiary care center with low-grade lymphoma for compliance with National Comprehensive Cancer Network guidelines. This was a retrospective chart review. The study included all new patients with low-grade lymphoma who were diagnosed and treated at our center from January 1, 2005, to December 30, 2011. All the major facets of pretreatment workup were examined, including bone marrow biopsy, lactate dehydrogenase, hepatitis B screening, performance status of the patient, and diagnostic radiological studies. A total of 53 new patients were identified, of whom 36 (68%) had pretreatment workup and treatment at our center. The median age at diagnosis was 67. Fifty-four percent of the patients had bone marrow biopsy done. Radiological diagnostic studies were conducted in 97% of the patients. Hepatitis B screening was done in 19% of the total patients and 25% of the patients who received rituximab. Lactate dehydrogenase levels were checked in 72% of the patients. A significant deviation from the National Comprehensive Cancer Network guidelines for low-grade lymphoma pretreatment workup was observed for hepatitis B screening. Measures to ensure that patients have hepatitis B screening before rituximab were implemented. Studies such as these help to improve patient care.

Pulmonary collision tumor consisting of adenocarcinoma and typical carcinoid--a case report and review of literature.

Collision tumors are rare in nature. We report a case of a 70-year-old woman who was found to have a new mass in the right lung. Right upper and middle lobectomies with a mediastinal lymph node sampling were performed. Pathological examination of the mass revealed a collision tumor composed of micropapillary adenocarcinoma and typical carcinoid. The neoplastic cells were not intimately admixed with one another. To the best of our knowledge, this case is the first report in the English medical literature of a primary pulmonary collision tumor consisting of micropapillary adenocarcinoma and typical carcinoid.

Current approaches to epigenetic therapy for the treatment of mantle cell lymphoma.

Epigenetics is the study of heritable changes in phenotype or gene expression caused by mechanisms other than changes in the underlying DNA sequence. Such changes can include DNA methylation or histone modifications which both serve to silence gene expression. This review describes a new development in pharmacology, epigenetic therapy, which attempts to correct these epigenetic changes for the treatment of mantle cell lymphoma (MCL) and other B cell malignancies for which no consensus on standard therapy exists. One class of drugs utilized are the histone deacetylase inhibitors, (HDACi) which result in the accumulation of acetylated histones. Hyperacetylation of histones and nonhistone proteins are postulated to mediate the anticancer effects of these drugs. Another class of epigenetic agents are hypomethylating agents, that can cause both DNA and histone hypomethylation. Epigenetic drugs may be useful in the treatment of cancer where hypermethylation of tumor suppressor genes is known to lead to silencing of these genes. The purine analog cladribine has been shown to have hypomethylating properties and has activity as a single agent or in combination with other therapies for mantle cell lymphoma. Epigenetic therapy with the DNA hypomethylating agent 5-aza-2-deoxycytidine can also cause restoration of cell surface expression of the CD20 protein and increase rituximab sensitivity in vitro. Combinations of epigenetic agents may act synergistically to further potentiate the efficacy of monoclonal antibodies like rituximab and ofatumumab and improve the treatment outcome in MCL.

Phase I/II study of clofarabine, etoposide, and mitoxantrone in patients with refractory or relapsed acute leukemia.

BACKGROUND: Clofarabine, a second-generation nucleoside analogue, was studied in combination with etoposide and mitoxantrone in acute leukemia. PATIENTS AND METHODS: In the phase I portion of this study clofarabine was given 20 or 25 mg/m(2) daily for 5 days (Days 2-6) with etoposide 100 mg/m(2) from day 1 to 5 and mitoxantrone 8 mg/m(2) from day 1 to 3. The dose-limiting toxicity was myelosuppression, and dose level 1, with clofarabine 20 mg/m(2) daily for 5 days was identified as the phase 2 dose. In total, 22 patients with relapsed or refractory acute myeloid leukemia (n = 18) and acute lymphocytic leukemia (n = 4) were treated. RESULTS: Five of 22 patients (23%) achieved complete response (CR), and 3 (13%) achieved CR with incomplete platelet recovery; an overall response rate of 36%. Median overall survival was 167 days (range, 22-1327 days). For 2 patients this regimen represented an effective bridge to allogeneic stem cell transplantation. CONCLUSION: Clofarabine in combination with etoposide and mitoxantrone is tolerable and shows significant activity in relapsed and refractory acute leukemia in adults.

Current role of radiation therapy for multiple myeloma.

BACKGROUND: Radiation therapy (RT) is a treatment modality traditionally used in patients with multiple myeloma (MM), but little is known regarding the role and effectiveness of RT in the era of novel agents, i.e., immunomodulatory drugs and proteasome inhibitors. METHODS: We retrospectively reviewed data from 449 consecutive MM patients seen at our institute in 2010-2012 to assess indications for RT as well as its effectiveness. Pain response was scored similarly to RTOG 0631 and used the Numerical Rating Pain Scale. RESULTS: Among 442 evaluable patients, 149 (34%) patients and 262 sites received RT. The most common indication for RT was palliation of bone pain (n = 109, 42%), followed by prevention/treatment of pathological fractures (n = 73, 28%), spinal cord compression (n = 26, 10%), and involvement of vital organs/extramedullary disease (n = 25, 10%). Of the 55 patients evaluable for pain relief, complete and partial responses were obtained in 76.4 and 7.2%, respectively. Prior RT did not significantly decrease the median number of peripheral blood stem cells collected for autologous transplant, even when prior RT was given to both the spine and pelvis. Inadequacy of stem cell collection for autologous stem cell transplant (ASCT) was not significantly different and it occurred in 9 and 15% of patients receiving no RT and spine/pelvic RT, respectively. None of the three cases of therapy-induced acute myelogenous leukemia/MDS occurred in the RT group. CONCLUSION: Despite the introduction of novel effective agents in the treatment of MM, RT remains a major therapeutic component for the management in 34% of patients, and it effectively provides pain relief while not interfering with successful peripheral blood stem cell collection for ASCT.

Primary CNS lymphoplasmacytic lymphoma: a case report and review of literature.

Lymphoplasmacytic lymphoma is a chronic lymphoproliferative disorder characterized by a proliferation of plasma cells, small lymphocytes, plasmacytoid lymphocytes and the production of monoclonal IgM. Primary central nervous system lymphomas (PCNSL) are rare non-Hodgkin lymphomas (NHL) that can be found in the brain, leptomeninges, eyes or spinal cord, and are mostly intracerebral. PCNSLs constitute 3-4% of primary brain tumors, and in most cases are diffuse large B-cell lymphomas (DLBCL).(1) Low grade lymphomas as primary central nervous system (CNS) lymphoma are very rare. We present here a case report of a woman who presented with headache and was found to have primary intracranial lymphoplasmacytic lymphoma (LPL).