ABSTRACT
Se presenta el caso clínico de una paciente de 63 años, con indicación de tiroidectomía total, a causa de un bocio multinodular con infiltrado neoplásico folicular. La evolución posquirúrgica fue tórpida y se caracterizó por la presencia de insuficiencia cardiaca aguda, hepatomegalia, neuropatía periférica y equimosis periorbitaria, condiciones clínicas sugerentes de amiloidosis, la que fue confirmada por medio de estudios como amiloidosis de cadenas ligeras (AL).
We present the clinical case of a 63-year-old patient, with indication of total thyroidec-tomy, due to a multinodular goiter with a follicular neoplastic infiltrate. Postoperative evolution was torpid and was characterized by the presence of acute heart failure, hepatomegaly, peripheral neuropathy and periorbital ecchymosis, clinical conditions suggestive of amyloidosis, which was confirmed by studies such as amyloidosis of light chains (AL).
Subject(s)
Humans , Female , Middle Aged , Immunoglobulin Light-chain Amyloidosis/diagnosis , Amyloidosis/diagnosis , Thyroidectomy , Biopsy , Congo Red , Amyloidosis/pathology , NeoplasmsABSTRACT
Abstract: Systemic light chain amiloydosis is a rare disease. Due to its typical cutaneous lesions, dermatologists play an essential role in its diagnosis. Clinical manifestations vary according to the affected organ and are often unspecific. Definitive diagnosis is achieved through biopsy. We report a patient with palpebral amyloidosis, typical bilateral ecchymoses and cardiac involvement, without plasma cell dyscrasia or lymphomas. The patient died shortly after the diagnosis.
Subject(s)
Humans , Female , Adult , Skin Diseases/diagnosis , Immunoglobulin Light-chain Amyloidosis/diagnosis , Skin Diseases/pathology , Biopsy , Fatal Outcome , Immunoglobulin Light-chain Amyloidosis/pathologyABSTRACT
Amiloidose não é uma única doença, e sim, uma condição presente em um grupo de doenças que tem em comum a deposição extracelular patológica de proteínas insolúveis em órgãos ou tecidos. Todas as fibrilas amiloides compartilham uma mesma estrutura secundária, a conformação em folha -pregueada, e um componente não fibrilar idêntico, a pentraxina amiloide sérica P (APS). Relatamos o caso de um paciente com 62 anos, portador de amiloidose sistêmica do tipo AL. O diagnóstico foi constatado através de exames histopatológicos e de imagens. Após diagnóstico, paciente foi submetido a seis ciclos de quimioterapia com vincristina, adriamicina e dexametasona (VAD). Após o qual, foi realizado manutenção com ciclofosfamida, 600mg por um dia, e dexametasona, 40mg por quatro dias repetidos a cada 28 dias. Paciente evoluiu com melhora da sintomatologia e retorno às suas atividades habituais.
Amyloidosis is a condition inherent to a group of diseases, which exhibit the common feature of pathological extracellular deposition of insoluble proteins in organs or tissues. All amyloid fibrils share the same secondary structure, the ?-pleated sheet conformation, and a nonfibrillar identical component, the serum amyloid pentraxin (SAP). We report a 62-year-old man with systemic AL amyloidosis. Diagnosis was made through histopathology and imaging. The patient underwent 6 cycles of vincristine, adriamycin and dexamethasone (VAD), with maintenance with cyclophosphamide 600mg for 1 day and dexamethasone 40mg/day for 4 days every 28 days. The patient was relieved of his symptoms and returned to his daily activities.