Presentation
History of multiple myeloma, autologous stem cell transplantation and febrile neutropenia.
Patient Data
Age: 65 years
Gender: Male
From the case:
Extramedullary hematopoiesis
Axial non-contrast

Homogeneous soft tissue lesions are seen in the right posterior mediastinum adjacent to vertebral bodies.
Mild splenomegaly is noted.
The examined bones and the spine show diffuse punctate osteolytic marrow lesions.
Case Discussion
The most common sites of extramedullary hematopoiesis are the liver and the spleen, although any organ could be involved.
Thoracic involvement is less common and manifests as the presence of lobulated masses adjacent to the spinal column.
In this patient, there is also seen splenomegaly.