Journal of Radiology Case Reports, Vol 4, No 11 (2010)

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CT and MR findings in extramedullary haematopoiesis with biliary system encasement: a case report

CT and MR findings in extramedullary haematopoiesis with biliary system encasement: a case report

Alfredo La Fianza, Giulia van der Byl, Gloria Maccabelli, Lorella Torretta, Fabrizio Calliada

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Abstract


Extramedullary haematopoiesis is the production of blood elements outside the bone marrow cavity. In our case computed tomography and magnetic resonance imaging revealed the presence of a rare localization of extramedullary haematopoiesis with encasement of the biliary system in a 59 years-old male Caucasian patient, with chronic myelofibrosis and hepatic failure's symptomatology. Computed tomography detected the presence of homogeneous hypodense tissue around intra-hepatic bile ducts with minimal contrast enhancement, strongly suggestive for extramedullary haematopoiesis. Magnetic resonance confirmed the presence of a solid tissue surrounding the biliary-tree, showing late enhancement after gadolinium administration suggestive for non-active lesion of extramedullary haematopoiesis. Final diagnosis was established by percutaneous biopsy.


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