Inflammatory pseudotumor of the spleen concomitant with renal cell carcinoma: case report.
BACKGROUND
Inflammatory pseudotumor is a rare benign lesion that can occur at a wide variety of primary sites. It is usually worrisome for the patient and the medical staff, since it cannot be clinically or radiologically distinguished from malignant entities.


METHODS
We report on a case of splenic inflammatory pseudotumor presenting with concomitant renal cell carcinoma. Despite the alarming macroscopic appearance of pseudotumors, their microscopic features usually confirm the inflammatory nature of such lesions. Evidence regarding the etiology of pseudotumors is still lacking, but hypotheses have been created.
Loshii
Sérgio Ossamu
SO
Department of Pathology, Mie University School of Medicine, Mie, Japan. soioshii@bsi.com.br
Sakamoto
Danielle Giacometti
DG
Machuca
Tiago Noguchi
TN
Yatani
Ryuichi
R
D000368:Aged; D002292:Carcinoma, Renal Cell / Q000473:pathology*; D003937:Diagnosis, Differential; D006104:Granuloma, Plasma Cell / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D010784:Photomicrography; D013158:Splenic Diseases / Q000473:pathology*; D014057:Tomography, X-Ray Computed