A Rare Case of Castleman's Syndrome Presenting with a Mass in the Bifurcation of the Celiac Trunk.

INTRODUCTION: Castleman's disease is an extremely rare disease in the abdomen region characterized by benign lymphoepithelial proliferation. CASE PRESENTATION: We report a case of a 63-year-old female who presented with abdominal pain. Abdominal CT Angio and dynamic contrast-enhanced abdominal MRI revealed a mass lesion showing markedly contrast enhancement, no vascular invasion sign, and diffusion restriction lesion in the truncus coelicus bifurcation region. The mass was surgically resected completely. Pathological evaluation showed a hyaline-vascular type of Castleman's disease. CONCLUSION: Castleman's disease should be kept in mind in the differential diagnosis of an isolated intra-abdominal mass.