Pulmonary amyloidosis with tracheobronchial presentation: clinical case report
DOI:
https://doi.org/10.11606/issn.1679-9836.v101i1e-179989Keywords:
Amyloidosis, Immunoglobulin Light-chain Amyloidosis, Pulmonary Atelectasis, Airway ObstructionAbstract
Introduction: Amyloidosis is the term used to describe diseases that cause extracellular deposition of pathological fibrillar proteins in organs and tissues, which can be systemic or restricted to a single organ. The clinical manifestations are diverse, such as cardiomyopathy, renal failure, splenomegaly, intestinal problems, neuropathies, lung problems, among others. Objective: to report a clinical case of a patient with pulmonary amioloidosis. Methodology: review of bibliographies in comparison to the case report, which was described based on data taken from the patient’s record and complementary exams. Clinical case: a seventy-year-old female patient sought medical assistance because of back pain, also presenting wheezing, dry cough, paroxysmal nocturnal dyspnea and orthopnea. Diagnostic investigation was carried out during hospitalization, in which biopsy of the tracheobronchial mucosa and collection of alveolar lavage were positive for the Congo Red test, wich confirmed the amyloidosis diagnosis. The patient was then referred for laser ablation therapy. Conclusion: hence, in a patient with a nonspecific clinical presentation and main diagnostic suspicion of pulmonary amyloidosis, it is essential to investigate and rule out differential diagnoses such as malignancy or plasma cell dyscrasia. Therefore, it is necessary to use high precision in the analysis of image exams in order to suggest this diagnosis, which should be confirmed through fibrobronchoscopy with bronchial tissue biopsy, that through the Congo Red dye, will show the presence of amorphous and birefringent substance, compatible with amyloid substance.
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