title: Right-sided intrarenal splenosis mimicking a renal carcinoma.
abstract: We describe a patient who underwent nephrectomy for an enhancing right renal mass that was subsequently pathologically confirmed as right renal splenosis. Since renal splenosis is quite rare and has previously been reported only in the left kidney, we did not consider splenosis in our differential diagnosis during the evaluation of the renal mass. Magnetic resonance imaging, as well as radionucleotide scan using 99mTc-labelled red blood cells, has been utilized for identifying ectopic splenic tissue. An elevated index of suspicion must be present in patients with a history of splenectomy or traumatic splenic rupture to avoid undue nephrectomy.
authors.affiliation: Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
authors.forename: Jay B
authors.initials: JB
authors.lastname: Page
authors.forename: Dean L
authors.initials: DL
authors.lastname: Lenz
authors.forename: Carson
authors.initials: C
authors.lastname: Wong
mesh_terms: D002292:Carcinoma, Renal Cell / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D007668:Kidney / Q000473:pathology*; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D013154:Spleen / Q000473:pathology; D017890:Splenosis / Q000175:diagnosis*; D013667:Technetium; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D013667:Technetium