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Updated: Feb 5, 2026

A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy PRRT: 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods
Published on: April 24, 2020
Accumulation of 131I in Esophageal Diverticulum Diagnosed by SPECT/CT
Alessio Rizzo1, Luca Zagaria2, Germano Perotti2
1From the Fondazione Policlinico A. Gemelli IRCCS-Università Cattolica Sacro Cuore, and.
Abstract:
A 72-year-old man underwent total thyroidectomy and radioiodine remnant ablation for papillary thyroid cancer in 2016. The posttherapy whole-body scan showed uptake in the neck, classified as residual thyroid tissue. Two years later, the patient came to our observation to perform a second radioiodine therapy for high levels of thyroglobulin. The planar posttherapy scan showed a focal radioiodine area in the neck. SPECT/CT diagnosed a voluminous esophageal diverticulum located in the upper third of the esophagus. A CT performed to discover the source of thyroglobulin excluded locoregional or distant metastases and confirmed the presence of a Zenker diverticulum.
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