Christopher O'Donnell, Author at Neurology Advisor

Christopher O'Donnell

All articles by Christopher O'Donnell

Empyema (Infections of the pleural space)

Empyema (Infections of the Pleural Space) I. What every physician needs to know. An empyema is a focal infectious collection in the pleural cavity. This infection can be parasitic, fungal, but more likely than not is bacterial. Usually this disease arises when the patient has a pneumonia that spreads. However, it can develop post thoracic…

Dieulafoy lesions and arteriovenous malformations

Dieulafoy lesions and arteriovenous malformations I. What every physician needs to know. Dieulafoy lesions (Figure 1) are large tortuous arterioles in the stomach that cause between 1 to 5.8% of all upper gastrointestinal bleeds. They were initially discovered in 1898 by the French surgeon Paul Georges Dieulafoy. These lesions bleed briskly and patients can present…

Next post in Hospital Medicine