Primary extranodal non-Hodgkin's lymphoma of oral cavity--a single centre retrospective study.

Background: Extra nodal involvements of non-Hodgkin's lymphomas (NHL) are not so uncommon, but the involvement of oral cavity by NHL is very rare.

Materials And Methods: The present study involved retrospective analysis of patients from year 2001 to 2011, who presented with oral mass and on evaluation were diagnosed to have primary extranodal NHL of oral cavity at a tertiary cancer care centre in South India.

Results: There were seven patients treated for primary NHL of oral cavity at our institute in last 10 years.

A case of primary rhabdomyosarcoma of the breast.

Primary rhabdomyosarcoma of the breast is a rarely reported in adults, and it occurrence is mostly observed in children. We report a case of primary rhabdomyosarcoma of breast in a 40-year-old lady, who presented in early stage and is in complete remission after one year of treatment.

Retroperitoneal inflammatory myofibroblastic tumor.

Background: Inflammatory myofibroblastic tumor (IMT) is a neoplasm of unknown etiology occurring at various sites. By definition, it is composed of spindle cells (myofibroblasts) with variable inflammatory component, hence the name is IMT.

Case Presentation: The present case is of a 46 years old woman presented with a history of flank pain, abdominal mass and intermittent hematuria for last 6 months.

Crystallization of three key glycolytic enzymes of the opportunistic pathogen Cryptosporidium parvum.

Cryptosporidium parvum is one of the major causes of waterborne diseases worldwide. This protozoan parasite depends mainly on the anaerobic oxidation of glucose for energy production. In order to identify the differences in the three-dimensional structure of key glycolytic enzymes of C.

Decarboxylative elimination of enol triflates as a general synthesis of acetylenes.

The enol trifluoromethanesulfonates 4, 8, 12, 17 and 20 of tert-butyl beta-ketodiesters and beta-ketoesters can be hydrolysed to the corresponding carboxylic acids by dissolution in trifluoroacetic acid. The dicarboxylic acids undergo mild decarboxylative elimination to give the acetylenic acids 4 and 9 in aqueous sodium bicarbonate solution at room temperature. Similarly, the monocarboxylic acids give the terminal and mid-chain acetylenes 13, 18, 21, and 24 by refluxing in acetone with potassium carbonate.