A case report of al amyloidosis
DOI:
https://doi.org/10.51987/Rev.Hosp.Ital.B.Aires.v37i3.613Keywords:
amyloidosis, AL amyloidosis, macroglossia, free light chains, cardiac amiloidosisAbstract
Background: amyloidosis is a systemic disease resulting from the deposition of misfolding proteins, in immunoglobulin light chain amyloidosis (AL) fibrils are composed of fragments of monoclonal light chains. In Argentina the incidence density of AL amyloidosis is 4.54 per million people year. Case: a 71-year-old female patient who consults for neural pain located in the left upper limb, associated with edemas in both lower limbs and exertional dyspnea, weight loss, constipation and macroglossia. On physical examination she had blood pressure of 100/60 mmHg, afebrile, saturating 98% of ambient air, weight of 46 kg and body mass index of 18.9. The peripheral blood laboratory has Kappa free light chains: 5.8 mg/L, Lambda: 430 mg/L with K L ratio: 0.13 mg/L and a ProBNP of 1686 pg/mL. Abdominal fat biopsy reports positive Congo red staining. Cardiac magnetic resonance with contrast (gadolinium) has been performed and result compatible with cardiac amyloidosis. Chest CT showed an area of consolidation in the upper lobe of the right lung; positive congo red. With the diagnosis of AL amyloidosis she was treated with CYBORD. Autologous stem cell transplantation was performed. Discussion: cardiac involvement is the main cause of morbidity and mortality by amyloidosis
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