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Captación de PSMA con 18F en un Tumor Desmoide Hipogástrico

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

¹Departments of Nuclear Medicine.

Clinical 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.

Palabras clave:

PET/CT tumor desmoide fibromatosis dificultad

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