Gastric Adenocarcinoma Incidentally Detected by PET/CT with PSMA Ligands

Here, we describe the case of a 74-year-old male patient with a high-risk prostate carcinoma who underwent positron-emission tomography/computed tomography (PET/CT) with [<sup>68</sup>Ga]Ga-prostate-specific membrane antigen ([<sup>68</sup>Ga]Ga-PSMA-11) for staging. [<sup...

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Main Authors: Cesare Michele Iacovitti, Barbara Muoio, Marco Cuzzocrea, Gaetano Paone, Giorgio Treglia
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Diagnostics
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Online Access:https://www.mdpi.com/2075-4418/15/1/101
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author Cesare Michele Iacovitti
Barbara Muoio
Marco Cuzzocrea
Gaetano Paone
Giorgio Treglia
author_facet Cesare Michele Iacovitti
Barbara Muoio
Marco Cuzzocrea
Gaetano Paone
Giorgio Treglia
author_sort Cesare Michele Iacovitti
collection DOAJ
description Here, we describe the case of a 74-year-old male patient with a high-risk prostate carcinoma who underwent positron-emission tomography/computed tomography (PET/CT) with [<sup>68</sup>Ga]Ga-prostate-specific membrane antigen ([<sup>68</sup>Ga]Ga-PSMA-11) for staging. [<sup>68</sup>Ga]Ga-PSMA-11 PET/CT detected an extensive area of increased tracer uptake at the prostatic level, involving both lobes. Additionally, a rounded lesion approximately 4 cm in diameter was identified in the celiac region adjacent to the stomach, exhibiting moderate tracer uptake. Based on these imaging findings, the patient underwent radiation therapy applied to the prostate and pelvis and a biopsy of the suspected lesion adjacent to the stomach, which was positive for Siewert type III gastroesophageal junction adenocarcinoma (HER2-negative, PDL-1 60%). This case demonstrates the importance of not overlooking incidental tracer uptakes in PSMA PET/CT imaging in the stomach, as they could represent neoplastic lesions.
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institution Kabale University
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spelling doaj-art-5e947598df534641be32108b2146182a2025-01-10T13:16:43ZengMDPI AGDiagnostics2075-44182025-01-0115110110.3390/diagnostics15010101Gastric Adenocarcinoma Incidentally Detected by PET/CT with PSMA LigandsCesare Michele Iacovitti0Barbara Muoio1Marco Cuzzocrea2Gaetano Paone3Giorgio Treglia4Division of Nuclear Medicine, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, SwitzerlandDivision of Medical Oncology, Oncology Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, SwitzerlandDivision of Nuclear Medicine, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, SwitzerlandDivision of Nuclear Medicine, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, SwitzerlandDivision of Nuclear Medicine, Imaging Institute of Southern Switzerland, Ente Ospedaliero Cantonale, 6500 Bellinzona, SwitzerlandHere, we describe the case of a 74-year-old male patient with a high-risk prostate carcinoma who underwent positron-emission tomography/computed tomography (PET/CT) with [<sup>68</sup>Ga]Ga-prostate-specific membrane antigen ([<sup>68</sup>Ga]Ga-PSMA-11) for staging. [<sup>68</sup>Ga]Ga-PSMA-11 PET/CT detected an extensive area of increased tracer uptake at the prostatic level, involving both lobes. Additionally, a rounded lesion approximately 4 cm in diameter was identified in the celiac region adjacent to the stomach, exhibiting moderate tracer uptake. Based on these imaging findings, the patient underwent radiation therapy applied to the prostate and pelvis and a biopsy of the suspected lesion adjacent to the stomach, which was positive for Siewert type III gastroesophageal junction adenocarcinoma (HER2-negative, PDL-1 60%). This case demonstrates the importance of not overlooking incidental tracer uptakes in PSMA PET/CT imaging in the stomach, as they could represent neoplastic lesions.https://www.mdpi.com/2075-4418/15/1/101PETpositron-emission tomographynuclear medicinehybrid imagingPSMAgastric cancer
spellingShingle Cesare Michele Iacovitti
Barbara Muoio
Marco Cuzzocrea
Gaetano Paone
Giorgio Treglia
Gastric Adenocarcinoma Incidentally Detected by PET/CT with PSMA Ligands
Diagnostics
PET
positron-emission tomography
nuclear medicine
hybrid imaging
PSMA
gastric cancer
title Gastric Adenocarcinoma Incidentally Detected by PET/CT with PSMA Ligands
title_full Gastric Adenocarcinoma Incidentally Detected by PET/CT with PSMA Ligands
title_fullStr Gastric Adenocarcinoma Incidentally Detected by PET/CT with PSMA Ligands
title_full_unstemmed Gastric Adenocarcinoma Incidentally Detected by PET/CT with PSMA Ligands
title_short Gastric Adenocarcinoma Incidentally Detected by PET/CT with PSMA Ligands
title_sort gastric adenocarcinoma incidentally detected by pet ct with psma ligands
topic PET
positron-emission tomography
nuclear medicine
hybrid imaging
PSMA
gastric cancer
url https://www.mdpi.com/2075-4418/15/1/101
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AT barbaramuoio gastricadenocarcinomaincidentallydetectedbypetctwithpsmaligands
AT marcocuzzocrea gastricadenocarcinomaincidentallydetectedbypetctwithpsmaligands
AT gaetanopaone gastricadenocarcinomaincidentallydetectedbypetctwithpsmaligands
AT giorgiotreglia gastricadenocarcinomaincidentallydetectedbypetctwithpsmaligands