%0 Journal Article %T A Huge Metastatic Liver of a Neuroendocrin Tumor Explored by SPECT/CT with <sup>99m</sup>Tc-Tektrotyd: A Case Report %A Imad Ghfir %A Manal Otmani %A Chaimae Bensaid %A Majdouline Bellakhdar %A Malika Ç %A aoui %A Nouzha BenRaï %A s %J Open Journal of Medical Imaging %P 101-106 %@ 2164-2796 %D 2023 %I Scientific Research Publishing %R 10.4236/ojmi.2023.133010 %X Background: Colorectal neuroendocrine tumors are rare and have a heterogeneous clinical representation and variable prognosis. High grade neuroendocrine tumors (NETs) are characterized by destructive and aggressive growth, followed by rapid spread. For this purpose, SPECT/CT with 99mTc-Tektrotyd is very useful for imaging and staging of NETs. Case Report: A 50-year-old man with a huge metastatic liver from an unknown neuroendocrine tumor (NET). SPECT/CT with 99mTc-Tektrotyd was performed in this patient, it showed a huge metastatic hepatomegaly compressing neighboring organs with bone metastases, and also revealed the primary colon tumor. Discussion and Conclusion: In recent decades, the incidence and prevalence of neuroendocrine tumors (NETs), especially those of the colorectal segments, have been increasing. 99mTc-EDDA/HYNIC-TOC (Tektrotyd?) was introduced into the market and its use has been approved for scintigraphic imaging of patients with NETs and other SSTR-positive tumors. It provides in vivo metabolic data related to the over-expression of Somatostatin Receptors (SSTRs) and also predicts response to peptide receptor radionuclide therapy (PRRT). %K Colonic Neuroendocrine Tumor %K Liver Metastases %K Bone Metastases %K SPECT/CT %K < %K sup> %K 99m< %K /sup> %K Tc-Tektrotyd %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=127039