RESUMO
Extrapulmonary deposition of macroaggregated albumin particles on lung perfusion scintigraphy occurs in the presence of right-to-left shunting, as demonstrated in this case of portosystemic shunting related to superior vena cava obstruction by germ cell tumor of the mediastinum. The case demonstrates the importance of examining tracer deposition within the entire field of view on (99m)Tc-macroaggregated albumin perfusion lung scintigraphy for extrapulmonary findings.
Assuntos
Neoplasias do Mediastino/complicações , Neoplasias Embrionárias de Células Germinativas/complicações , Imagem de Perfusão , Ventilação Pulmonar , Síndrome da Veia Cava Superior/diagnóstico por imagem , Síndrome da Veia Cava Superior/etiologia , Humanos , Masculino , Síndrome da Veia Cava Superior/fisiopatologia , Tomografia Computadorizada por Raios X , Adulto JovemRESUMO
INTRODUCTION: Polyarteritis nodosa can on rare occasions manifest itself as vasculitis of the gallbladder. Patients typically present with right upper quadrant pain and are initially worked up for cholecystitis. The definitive diagnosis is then usually based on surgical and histopathological findings. CASE PRESENTATION: In this case a 23-year-old Caucasian female presented with a 3 week history of right upper quadrant pain and fevers. CONCLUSION: The clinical pathway and imaging findings of a rare case of gallbladder vasculitis as a manifestation of polyarteritis nodosa are demonstrated.
