Transbronchial cryobiopsy proven amyloid diffuse cystic lung disease complicating a transthyretin mutated (ATTRm) amyloidosis: a case report

Autor: Sébastien Gaultier, Tania Puscas, Jean Pastre, Laure Gibault, Jean-Benoît Arlet, Cécile Cauquil, Adrien Michon
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Therapeutic Advances in Respiratory Disease, Vol 17 (2023)
Druh dokumentu: article
ISSN: 1753-4666
17534666
DOI: 10.1177/17534666231178690
Popis: We present a case report of transbronchial cryobiopsy proven diffuse amyloid cystic lung disease complicating a homozygous Val122Ile (V122I) transthyretin mutated amyloidosis (ATTRm). To the best of our knowledge, this is the first case in the literature reporting such pulmonary lesions in ATTRm amyloidosis, and notably diagnosed through cryobiopsy. A 51-year-old man from Mali with a past medical history of bilateral carpal tunnel syndrome presented erectile dysfunction, asthenia and worsening dyspnoea over the past year. He presented signs of cardiac failure; histological and radiological investigations diagnosed cardiac amyloidosis. He was found homozygote for the V122I mutation in transthyretin. A diffuse cystic lung disease (DCLD) was noted on computed tomography (CT) scan. We performed a transbronchial pulmonary cryobiopsy that revealed histological transthyretin amyloid deposits. This case report illustrates the safety and usefulness of cryobiopsy in the setting of DCLD and extends ATTRm amyloidosis as a possible cause of DCLD.
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