Wisit Cheungpasitporn, MD


Phrenic Nerve Paralysis

May 22, 2012

Phrenic nerve paralysis can present with chest wall pain, cough, and exertional dyspnea mimicking cardiac dyspnea. Fluoroscopy is the most reliable way to document diaphragmatic paralysis, and the sniff test confirms that abnormal hemidiaphragm excursion is due to paralysis rather than unilateral weakness.

An Elderly Woman With IgA Lambda Multiple Myeloma and Kidney Disease

April 05, 2012

A 92-year-old woman presented with a 6-month history of progressively worsening fatigue, weight loss, generalized bone pain, and dyspnea on exertion. A skeletal survey found lytic lesions in the pelvis, sacrum, and calvarium (shown here).

Pulmonary Arteriovenous Malformation in a Woman With Severe Mitral Valve Stenosis

November 01, 2011

An 86-year-old woman presented with a 1-week history of worsening dyspnea, wheezing, and orthopnea. She denied chest pain, cough, or fever. She did not smoke cigarettes. Her oxygen saturation was 86% on 2 L/min via nasal cannula.