We report a case of Epstein-Barr virus (EBV)-positive splenic
inflammatory pseudotumor treated by laparoscopic
splenectomy. A 66-year-old female without symptoms was found to have a solitary, avascular, solid
tumor of the spleen by contrast-enhanced computed tomography. The
tumor was compatible with a primary
tumor of the spleen. A benign splenic
tumor was the most likely diagnosis, but
malignant lymphoma could not be ruled out because the serum-soluble
interleukin-2 receptor (sIL-2R) level was elevated. Laparoscopic
splenectomy was performed to enable a definite diagnosis. Removal of the whole spleen without injury was possible. Possible contamination of the extirpation orifice by
cancer cells was carefully prevented by enclosing the spleen in a
plastic bag. Histopathological examination showed the
tumor to be an EBV-positive
inflammatory pseudotumor. To the best of our knowledge, this is only the second report of an EBV-positive splenic
inflammatory pseudotumor with an increased serum sIL-2R level. Although EBV-positive
inflammatory pseudotumors have been reported to recur, no sign of recurrence has been detected in the present case in the 17 months following
splenectomy.