Presentation
Abdominal discomfort.
Patient Data
Hazy nodal soft tissue mass in the root of the mesentery. Few enlarged retroperitoneal nodes.
PATHOLOGY REPORT
Mesenteric lymph node fine needle aspirate is received.
MICROSCOPIC:
Flow Cytometry Immunophenotyping Results:
Cytospin of the mesenteric lymph node FNA for flow cytometry shows a monotonous population of small lymphocytes, some with irregular nuclear borders, with interspersed larger lymphocytes with prominent nucleoli.
Population Reported: B-lymphocytes
Abnormal cells: 85 % of flow events
FINAL DIAGNOSIS:
Mesenteric lymph node, fine needle aspirate, flow cytometry:
-CD10-positive B-cell lymphoma
Case Discussion
This case serves as a good companion and distinction to sclerosing mesenteritis, which can also present with a soft tissue mass in the mesentery. In this case, the mass is bulky and nodal, which is much more suggestive of lymphoma. A few enlarged retroperitoneal lymph nodes also favor this diagnosis. This was biopsied using a transabdominal approach with ultrasound.