Pulmonary, Critical Care & Sleep Medicine

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Cystic Fibrosis

End Stage Cystic Fibrosis Lungs

Cystic Fibrosis

Cystic Fibrosis is an inherited disease that affects the lungs and digestive system of about 30,000 children and adults in the United States (70,000 worldwide). A defective gene and its protein product cause the body to produce unusually thick, sticky mucus that: clogs the lungs and leads to life-threatening lung infections; and obstructs the pancreas and stops natural enzymes from helping the body to break down and absorb food. People with CF tend to have a lot of sinus problems.

Symptoms of Cystic Fibrosis

People with CF can have a variety of symptoms including:

  • very salty-tasting skin,
  • persistent coughing (at times with phlegm),
  • frequent lung infections,
  • wheezing,
  • shortness of breath,
  • poor growth/weight gain in spite of a good appetite,
  • frequent greasy bulky stools,
  • difficulty in bowel movements,
  • sinus issues. (Read More)


CF (Cystic Fibrosis) Physicians


Julie Biller, MD

Director of CF Program

Professor of Pulmonary and Pediatric Pulmonary Medicine


Nancy Boll-Price, RN, APNP

Nurse Practitioner



Pat Pfahler, RN, BSN

Adult Cystic Fibrosis Coordinator

Christine Czajkowski, RRT

Registrered Respiratory Therapist


Michelle McDonagh, RD, CD

Registered Dietician


Julie Siegel, MSW

Master's of Social Work


© 2014 Medical College of Wisconsin
Page Updated 12/04/2014