Dr. John Jay Shannon M.D.

Chronic Obstructive Pulmonary Disease (COPD) and lung cancer are two ends of the same spectrum. Though vastly different in core characteristics, they share many symptoms such as painful wheezing, a persistent cough, and the production of copious mucus. Both these diseases have similar causes and...

For many people with CF, remembering their daily treatment regimens and medication schedules can seem daunting and difficult. Most patients acclaim that if they had a resource, such as an app, that would make their health management easier to handle, that they would love to try it. In addition to...

What are lung nodules?Lung nodules are spots present on the lung. These spots are usually around 1.5 inches or three centimeters in diameter. Lung nodules seen on imaging tests are often called as coin lesions. If a lung X-ray shows spots that are more than three centimeters, it is regarded as a...

Our respiratory system is a complex machine comprised of small parts that ensure its smooth functioning. Even a small hindrance in any of the links can cause a complication in the respiratory system, which could result in severe health issues.There are many types of respiratory diseases, the most...

The ability to gain and maintain a healthy weight for patients who suffer from cystic fibrosis can be a challenge. Many children with the condition suffer from failure to thrive. The disorder has the tendency to cause a blockage in digestion that prevents necessary fats from being absorbed. Proper...

Before, during, and after having a baby, time is spent stressing about getting all the things the baby will need, thinking about whether the nursery will be done on time, and lots of time is spent worrying whether the baby will be healthy or not. This worst fear of many moms and dads came true for...