A 33-year-old previously healthy female presented with a painless abdominal lump. CT scan revealed an 8.6 cm homogeneous soft tissue mass centered in the right central mesentery with associated lymphadenopathy involving the mesenteric, retroperitoneal, and para-aortic lymph nodes. CBC showed hemoglobin of 12.6 g/dL, platelets of 304 x 10(9)/L and WBC of 7 x 10(9)/L. Core needle biopsy of the right mesenteric mass was performed. Immunohistochemical stains were negative for keratin, SOX10, CD3, CD10, CD19, CD20, CD30, ALK, BCL2, BCL6, MYC, and MUM1.
|Aishwarya Ravindran, M.B.B.S.|
Resident, Anatomic and Clinical Pathology
|Karen Rech, M.D.|
Assistant Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine