Logo American Journal of Case Reports

Call: 1.631.629.4328
Mon-Fri 10 am - 2 pm EST

Contact Us

Logo American Journal of Case Reports Logo American Journal of Case Reports Logo American Journal of Case Reports

31 December 2019 : Case report  South Korea

Long-Term Follow-Up of a Patient with Primary Presacral Neuroendocrine Tumor: A Case Report with Literature Review

Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)

Mi Ra Kim1ABCDEF, Hye-kyung Shim2ABCDEF*

DOI: 10.12659/AJCR.921439

Am J Case Rep 2019; 20:1969-1975


BACKGROUND: Primary neuroendocrine tumors (NETs) in the retroperitoneal space are extremely rare. We report the case of a patient diagnosed with primary presacral NET in the retroperitoneum that was initially suspected to be hepatic metastasis, who was followed up for more than 8 years.

CASE REPORT: A 78-year-old man was referred to our hospital for the treatment of a hepatic mass. Following resection, the patient was diagnosed with a grade 2 well-differentiated NET. A thorough evaluation to identify the primary tumor detected small well-demarcated presacral nodules on In-111 octreotide single-photon emission tomography/computed tomography (SPECT/CT). Metastases to other locations were not observed. Presacral nodules were difficult to remove using the surgical approach; therefore, we decided to follow up closely. After 4 years, the patient was diagnosed with recurrent hepatic metastasis and peritoneal seeding. Although combination therapy of everolimus and octreotide long-acting repeatable was administered, it was discontinued owing to disease progression. Baseline Ga-68 DOTATOC positron emission tomography-computed tomography revealed adequate avidity for the lesions observed on SPECT/CT; therefore, 5 cycles of peptide receptor radionuclide therapy (PRRT) were administered, after which stable disease was maintained.

CONCLUSIONS: We identified an extremely rare primary retroperitoneal NET on In-111 octreotide SPECT/CT. During long-term follow-up, although the patient presented with recurrent hepatic metastases and peritoneal seeding, PRRT was successful in stabilizing the disease.

Keywords: Diagnostic Techniques, Radioisotope, neuroendocrine tumors, Positron-Emission Tomography, Radionuclide Imaging, Retroperitoneal Neoplasms, Tomography, Emission-Computed, Single-Photon, Liver Neoplasms, octreotide, Radiopharmaceuticals, Rare Diseases, Single Photon Emission Computed Tomography Computed Tomography, Watchful Waiting

Add Comment 0 Comments

In Press

29 Feb 2024 : Case report  Greece

Pancreatolithiasis: Does Management Depend on Clinical Manifestations?

Am J Case Rep In Press; DOI: 10.12659/AJCR.942725  


01 Mar 2024 : Case report  USA

A 25-Year-Old Man with a History of Substance Abuse Presenting with Pneumomediastinum Due to Methamphetamin...

Am J Case Rep In Press; DOI: 10.12659/AJCR.941509  


01 Mar 2024 : Case report  USA

Complicated Treatment Course of Severe Asymptomatic Hypertriglyceridemia: A Case Report and Literature Review

Am J Case Rep In Press; DOI: 10.12659/AJCR.943858  

04 Mar 2024 : Case report  Switzerland

Unintentional Plastic Blister Ingestion Leading to Intestinal Perforation: A Report of Two Cases

Am J Case Rep In Press; DOI: 10.12659/AJCR.943514  

Most Viewed Current Articles

07 Mar 2024 : Case report  USA

Neurocysticercosis Presenting as Migraine in the United States

DOI :10.12659/AJCR.943133

Am J Case Rep 2024; 25:e943133


10 Jan 2022 : Case report  Germany

A Report on the First 7 Sequential Patients Treated Within the C-Reactive Protein Apheresis in COVID (CACOV...

DOI :10.12659/AJCR.935263

Am J Case Rep 2022; 23:e935263

19 Jul 2022 : Case report  Saudi Arabia

Atlantoaxial Subluxation Secondary to SARS-CoV-2 Infection: A Rare Orthopedic Complication from COVID-19

DOI :10.12659/AJCR.936128

Am J Case Rep 2022; 23:e936128

23 Feb 2022 : Case report  USA

Penile Necrosis Associated with Local Intravenous Injection of Cocaine

DOI :10.12659/AJCR.935250

Am J Case Rep 2022; 23:e935250

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923