Tumor necrosis factor (TNF) alpha has been implicated in asthmatic airway inflammation. The pathophysiologic mechanisms of asthma induced by anti-TNF-alpha treatment are unknown. We report the cases of two patients who ...

Background and AimIn patients with pulmonary embolism (PE), a pulmonary radiograph may reveal oligemic fields (the Westermark sign) associated with sites of occlusion of the pulmonary arteries, interruption or loss of the ...