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https://www.selleckchem.com/products/elenbecestat.html We report comprehensive characterization of an unusual collision tumor comprising extramedullary plasmacytomas and nasopharyngeal angiofibroma in a pediatric patient, which has yet to be reported. Histologically, the nasopharyngeal angiofibroma showed typical morphology with a diffuse, dense plasmacytic infiltrate in the stroma. The neoplastic plasma cells showed a spectrum of well-differentiated, plasmablastic, and anaplastic morphology, Epstein-Barr virus encoded RNA (EBER) positivity, and aberrant immunophenotype. Fluorescence in situ hybridization using a plasma cell myeloma targeted panel detected gains of 1q21.3 (CKS1B, x3), 3q27 (BCL6, x4), and 11q22.3 (ATM, x3), but no rearrangement of ALK and MYC. A 50-gene next generation sequencing lymphoma panel failed to detect any pathogenic mutation. Plasmacytoma with EBER positivity and plasmablastic morphology must be distinguished from plasmablastic lymphoma due to different clinical management and prognosis. This case highlights the importance of a thorough pathological evaluation of a mass lesion with synchronous neoplastic processes.Ethylene glycol 2-ethylhexyl ether (EGEHE) is a solvent used in a variety of applications.We report disposition and metabolism of EGEHE following a single gavage or dermal administration of 50, 150 or 500 mg/kg [14C]EGEHE in rats and mice and in vitro in rat hepatocytes.EGEHE was cleared rapidly in rat hepatocytes (half-life ∼4 min) with no sex difference.EGEHE was well- and moderately absorbed following oral administration (rats 80-96%, mice 91-95%) and dermal application (rats 25-37%, mice 22-24%), respectively, and rapidly excreted in urine.[14C]EGEHE-derived radioactivity was distributed to tissues (oral 2.3-7.2%, dermal 0.7-2.2%) with liver and kidney containing the highest levels in both species.EGEHE was extensively metabolised with little to no parent detected in urine. The alkoxyacetic acid metabolite, which has previous

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