The American journal of the medical sciences
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Letter Case Reports
Ulcerated Lesions of the Midline Gingiva and Soft Palate.
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There is a growing interest in using programmed death ligand-1 (PD-L1) as a prognostic marker for melanoma. We conducted this meta-analysis to explore the prognostic and clinicopathological value of PD-L1 in melanoma. ⋯ Positive PD-L1 expression may be an important prognostic factor for longer OS in patients with metastatic melanoma.
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Emphysematous pancreatitis (EP) is an unusual medical emergency that presents with intraparenchymal pancreatic air in the setting of necrotizing infection. We aimed to determine the differences in the epidemiology, etiology, clinical presentation, symptoms and outcome of EP between elderly and nonelderly patients. ⋯ Biliary pancreatitis is the most common type of EP in the elderly and has an atypical presentation with less fever, more severe shock, and more surgical interventions. In treating elderly patients with pancreatitis, immediate administration of adequate antibiotics, assisted drainage and early surgical intervention are needed to prevent shock.
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Numerous studies have reported associations between particulate matter with aerodynamic diameters of ≤2.5 μm (PM2.5) and chronic obstructive pulmonary disease (COPD) hospitalizations and mortality in cities worldwide. Nonetheless, the evidence of an association remains varied and limited. ⋯ PM2.5 is associated with COPD hospitalizations and mortality. Controlling ambient air pollution would provide benefits to COPD patients.