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01.12.2012 | Case report | Ausgabe 1/2012 Open Access

World Journal of Surgical Oncology 1/2012

Whole body diffusion for metastatic disease assessment in neuroendocrine carcinomas: comparison with OctreoScan® in two cases

Zeitschrift:
World Journal of Surgical Oncology > Ausgabe 1/2012
Autoren:
Rachel Jorge D Cossetti, Regis Otaviano França Bezerra, Brenda Gumz, Adriana Telles, Frederico P Costa
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1477-7819-10-82) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

RJC: case preparation and revised the manuscript. The author read and approved the final manuscript; RB: case preparation, established the imaging protocols and revised the manuscript; BG: revised the manuscript; AT: revised the manuscript; FC: case preparation, drafted discussion and revised the manuscript. FC: is member of the advisor board member for the European Neuroendocrine Tumor Society. All the authors read and approved the final manuscript.

Abstract

Neuroendocrine tumor (NET) patients must be adequately staged in order to improve a multidisciplinary approach and optimal management for metastatic disease. Currently available imaging studies include somatostatin receptor scintigraphy, like OctreoScan®, computed tomography (CT), scans and magnetic resonance imaging (MRI), which analyze vascular concentration and intravenous contrast enhancement for anatomic tumor localization. However, these techniques require high degree of expertise for interpretation and are limited by their availability, cost, reproducibility, and follow-up imaging comparisons. NETs significantly reduce water diffusion as compared to normal tissue. Diffusion-weighted imaging (DWI) in MRI has an advantageous contrast difference: the tumor is represented with high signal over a black normal surrounding background. The whole-body diffusion (WBD) technique has been suggested to be a useful test for detecting metastasis from various anatomic sites. In this article we report the use of DWI in MRI and WBD in two cases of metastatic pulmonary NET staging in comparison with OctreoScan® in order to illustrate the potential advantage of DWI and WBD in staging NETs.
Zusatzmaterial
Authors’ original file for figure 1
12957_2011_1056_MOESM1_ESM.pdf
Authors’ original file for figure 2
12957_2011_1056_MOESM2_ESM.pdf
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