Inflammatory pseudotumours of spleen

Inflammatory pseudotumours are benign lesions of unknown aetiology that can appear almost in any organ, sometimes along with infectious agents like Epstein-Barr virus. They are very rare in the spleen, with about 80 cases described in the world literature. The tumour is a single, very rarely multinodal, lesion. Middle-aged patients are mostly affected. Symptoms are either absent or uncharacteristic so that the tumours are discovered by chance or during the investigations for other diseases. Although the tumour may be suspected before surgery, the exact diagnosis is established by the histological and immunohistochemical examination of the spleen removed as lymphoma or some other lymphoproliferative disorder because they cannot be ruled out.