A Regional Multicenter Retrospective Analysis of Patients with Primary Central Nervous System Lymphoma Diagnosed from 2000-2012: Treatment Patterns and Clinical Outcomes.

Introduction Primary central nervous system lymphoma (PCNSL) is a rare tumor without a well-defined standard of care. For immunocompetent patients, therapeutic regimens have largely evolved from treatment with whole-brain radiation therapy (WBRT) to treating initially with systemic chemotherapy regimens that include high-dose (HD) methotrexate (MTX) with or without WBRT. Looking at population-based treatment trends may help define which therapies are most effective.

Upper gastrointestinal bleeding in a patient with depression receiving selective serotonin reuptake inhibitor therapy.

Background: Serotonin plays an important role in the normal clotting phenomenon and is released by platelets. Platelets are dependent on a serotonin transporter for the uptake of serotonin, as they cannot synthesize it themselves. Selective serotonin reuptake inhibitors (SSRIs) block the uptake of serotonin into platelets and can cause problems with clotting leading to bleeding.