A rare mutation on alpha-1 antitrypsin deficit and lung fibrosis: case report

A rare mutation on alpha-1 antitrypsin deficit and lung fibrosis: case report

Authors

  • Miguel Afonso Department of Pulmonology at Centro Hospitalar Trás-os-Montes e Alto Douro, Vila Real, Portugal https://orcid.org/0000-0001-5285-2203
  • Clara Silva Department of Internal Medicine at Centro Hospitalar Universitário de São João, Porto, Portugal
  • Inês Pinho – Liver Unit, Department of Internal Medicine at Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal
  • Artur Vale Department of Pulmonology at Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal
  • Ana Fernandes Department of Pulmonology at Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal

Keywords:

Alpha1-antitrypsin deficiency, Pulmonary fibrosis, Liver diseases

Abstract

Alpha1-antitrypsin deficiency (AATD) is an autosomal codominant disease, and different genetic variants are known, some of which very rare. Usual pulmonary manifestations are emphysema, bronchiectasis and asthma. Pulmonary fibrosis is uncommon. 

We describe a case of a 64 year old man with an inaugural diagnosis of cirrhosis and lung fibrosis, without emphysema or bronchiectasis, associated with AATD. Further investigation identified a rare mutation in heterozigosity (MMPalermo), usually associated with liver disease. Concomitantly, he had a secondary iron overload, and in the course of the investigation, a type 2 diabetes mellitus installed.

The association between AATD and pulmonary fibrosis is rare, however it has been identified in a few studies and case reports, questioning the role of AAT in pulmonary fibrosis.

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Published

16-12-2020

Issue

Section

Case Reports

How to Cite

1.
Afonso M, Silva C, Pinho I, Vale A, Fernandes A. A rare mutation on alpha-1 antitrypsin deficit and lung fibrosis: case report. Sarcoidosis Vasc Diffuse Lung Dis [Internet]. 2020 Dec. 16 [cited 2025 Mar. 11];37(4):e2020019. Available from: https://mattioli1885journals.com/index.php/sarcoidosis/article/view/9877