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Mayo Clin Proc. 2005 Jun;80(6):817-21.

Usual interstitial pneumonia complicating dyskeratosis congenita.

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Department of Internal Medicine, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.


Dyskeratosis congenita (DC) is a rare disorder characterized by skin hyperpigmentation, nail dystrophy, and leukoplakia of mucous membranes. Pulmonary complications occur in approximately 20% of patients, although the specific histopathologic features, the temporal relationship between the diagnosis of DC and the development of pulmonary fibrosis, and the response to specific treatment are largely undefined. We describe 2 patients with DC who developed usual interstitial pneumonia. Pulmonary fibrosis developed 18 and 38 years after the original manifestations of DC. Both patients died of respiratory failure, 4 and 6 months after lung biopsy. Pulmonary fibrosis in patients with DC may be linked to underlying abnormalities of fibroblast function.

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