Assuntos
Injúria Renal Aguda/etiologia , Aneurisma da Aorta Abdominal/complicações , Doenças da Aorta/complicações , Idoso , Aneurisma da Aorta Abdominal/diagnóstico por imagem , Aneurisma da Aorta Abdominal/cirurgia , Doenças da Aorta/diagnóstico por imagem , Doenças da Aorta/cirurgia , Fístula Arteriovenosa/complicações , Fístula Arteriovenosa/diagnóstico por imagem , Evolução Fatal , Humanos , Masculino , Complicações Pós-Operatórias , Tomografia Computadorizada por Raios X , Veias Cavas/diagnóstico por imagemRESUMO
Thromboangiitis obliterans (TAO) or Buerger's disease is a nonatherosclerotic vascular disease of unknown etiology that occurs almost exclusively in young male tobacco users. The involvement of the medium-sized and small arteries and veins leads to ischemic complaints and trophic changes in the limbs. The authors report a case of Buerger's disease in a 29-year-old man, a heavy smoker, affecting the lower limbs and mesenteric vessels.
Assuntos
Oclusão Vascular Mesentérica/etiologia , Tromboangiite Obliterante/complicações , Adulto , Angiografia , Colo/irrigação sanguínea , Humanos , Masculino , Artérias Mesentéricas , Fumar/efeitos adversosAssuntos
Mieloma Múltiplo/fisiopatologia , Idoso , Humanos , Imunoglobulina G/imunologia , Masculino , SobreviventesRESUMO
We describe a patient with multiple myeloma and cryoglobulinemia who had spicules with a horny appearance in the follicular openings of the face, particularly on the nose. Histopathologic study demonstrated that these spicules consisted of eosinophilic homogeneous deposits in the intercellular spaces between keratinocytes in the upper layers of the follicular infundibulum. Direct immunofluorescence, ultrastructural, and biochemical investigations revealed that these eosinophilic deposits were cryoprecipitates composed of IgG-kappa with electrophoretic characteristics identical to those of the paraprotein present in the serum of the patient. Hence we believe that these lesions are best referred to as pseudohyperkeratotic spicules of the nose, and that they are a characteristic cutaneous manifestation of patients with multiple myeloma and cryoglobulinemia.