Emergency ultrasound identification of a lung mass
© Springer-Verlag 2010
Received: 3 June 2010
Accepted: 23 October 2010
Published: 16 November 2010
A 49-year-old woman with HIV and remote tobacco use presented with fever and 2 months of progressive dyspnea. A chest radiograph showed a right upper lobe pneumonia and treatment for community-acquired pneumonia was initiated.
Materials and methods
The emergency physician performed a bedside lung ultrasound that suggested a more complicated process and prompted computed tomography of the chest. This revealed a right upper lobe mass and lymphadenopathy consistent with neoplasm which was subsequently confirmed on bronchoscopy.
The role of lung ultrasound in the Emergency Department is reviewed and a new potential application of identifying patients in whom further diagnostic testing may be indicated is described.
A 49-year-old woman with a history of hypertension, HIV on HAART (last CD4 count 449 cells/μL and viral load 50 copies/mL), and remote tobacco use (15-pack-years) presented to the emergency department (ED) with 2 months of progressive shortness of breath. During this time, she reported having a cough productive of yellow sputum with associated pleuritic chest pain, fever, night sweats, and weight loss of more than 10 pounds. She was treated with azithromycin as an outpatient 6 weeks prior to presentation without improvement in her symptoms. One month prior, she was diagnosed with bronchitis and treated with moxifloxacin, again with no improvement. A few days prior to ED presentation she noticed her sputum was blood tinged. Her vital signs were temperature 101.4 degrees Fahrenheit, heart rate 110/min, respiratory rate 22/min, blood pressure 120/76 mmHg, and oxygen saturation 97% on 2 L/min nasal canula. She had rhonchi in the right mid and upper lung fields and her left lung was clear to auscultation. Her heart was regular, tachycardic, and without murmurs. The rest of her physical exam was otherwise unremarkable and non-contributory.
Previous studies have established the diagnostic utility of lung ultrasound in the Emergency Department. Lung ultrasonography has been increasingly used in trauma to evaluate patients for pneumothorax  and hemothorax . Indeed, many clinicians have integrated lung ultrasound into the initial trauma management using the Extended Focused Assessment with Sonography for Trauma (EFAST) . Lung ultrasound has also shown promise in the evaluation of acute respiratory failure , pneumonia , and the assessment of pulmonary artery pressure .
In this case, the PA and lateral chest radiographs did not suggest a mass, but the abnormalities seen on lung ultrasound prompted further evaluation with a chest CT. This case demonstrates an important role for lung ultrasound in the Emergency Department. By identifying patients in whom further diagnostic testing may be indicated, it has the potential to reduce delays in diagnosis and improve diagnostic accuracy when used in conjunction with conventional chest radiography.
Conflicts of interest
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