18F PSMA取り込みを認めた下腹部線維腫症の1例

Fernando López-Bermejo García¹, Araceli Jiménez Lara², José Carlos Rodríguez Gómez¹

¹Departments of Nuclear Medicine.

|December 22, 2025

Abstract:

A 68-year-old man with a history of 2 primary tumors (prostate adenocarcinoma and colon adenocarcinoma) underwent 18F-DCFPyL PET/CT for biochemical recurrence after prostate cancer treatment. A hypogastric nodular lesion with avid PSMA uptake was observed, interpreted as a possible implant. Surgical excision revealed a benign spindle cell proliferation compatible with a desmoid tumor (fibromatosis). This case highlights the potential pitfall of desmoid tumors mimicking malignancy on 18F-DCFPyL PET/CT, emphasizing the importance of awareness and correlation with clinical and histopathologic findings.

キーワード:

PET/CT 線維腫症線維腫症落とし穴

さらに関連する動画

10:28

Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT

Published on: January 22, 2018

11.5K

09:06

Development of a 68Gallium-Labeled D-Peptide PET Tracer for Imaging Programmed Death-Ligand 1 Expression

Published on: February 3, 2023

1.9K

関連する概念動画

01:29

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...