Renal Pseudo-tumor Related to Renal Splenosis: Imaging Features.

Abstract

OBJECTIVE:

To report the case of a 29-year-old patient presenting with renal splenosis along with a complete review of literature on this condition. Splenosis is a frequent condition following abdominal trauma or splenectomy, described as splenic tissue that autotransplants into a heterotopic location. However, renal splenosis is rare and often mistaken with renal carcinoma.

MATERIALS AND METHODS:

The patient was initially referred to our department for a renal mass incidentally discovered on ultrasound. Further investigation included with computed tomography and magnetic resonance imaging.

RESULTS:

Imaging features revealed a well circumscribed solid renal mass, exhibiting an isosignal on T1- and T2-weighted sequences in comparison with the renal cortex. The mass exhibited a heterogeneous enhancement on the arterial and portal phases, homogeneous patterns during the delayed phases, and high signal intensity on diffusion-weighted images. A partial nephrectomy was performed and pathological examination revealed the final diagnosis of renal splenosis.

CONCLUSION:

Imaging features alone do not provide a definitive diagnosis of splenosis but suggestive past history associated with imaging findings consistent with splenic tissue should lead to 99m technetium-sulfur colloid scanning or ferumoxid-enhanced MRI to avoid useless surgery.

• Authors: Mickael Tordjman, David Eiss, Jonathan Dbjay, Adeline Crosnier, Eva Comperat, Jean-Michel Correas, Nicolas De Saint Aubert, Olivier Helenon
• Journal: Urology (Urology) Vol. 114 Pg. e11-e15 (Apr 2018) ISSN: 1527-9995 [Electronic] United States
• PMID: 29378278 (Publication Type: Case Reports, Journal Article, Review)
• Copyright: Copyright © 2018 Elsevier Inc. All rights reserved.

Topics

• Adult
• Diagnosis, Differential
• Granuloma, Plasma Cell (diagnostic imaging, surgery)
• Humans
• Kidney Neoplasms (diagnostic imaging, surgery)
• Magnetic Resonance Imaging (methods)
• Male
• Nephrectomy (methods)
• Rare Diseases
• Risk Assessment
• Splenosis (diagnostic imaging, surgery)
• Tomography, X-Ray Computed (methods)