99mTc-Colloid Scintigraphy in the Differential Diagnosis of Pancreatic NET

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Introduction: An accessory spleen (AS), a benign and congenital condition, is characterized by a small nodule of splenic tissue found outside of the spleen, which can mimic a pancreatic neoplasm (p-NET). 68Ga-PET/CT is used to study lesions suspected for NET, but the radioactive tracer binds also the reticuloendothelial cells, resulting in false positives in case of AS.

Aim(s): We aimed to establish the role of scintigraphy with technetium-colloid (99mTc-colloid) in the differential diagnosis of tail p-NET and AS.

Materials and methods: We retrospectively evaluated patients with suspect of tail p-NET, suggested by uptake at 68Ga-PET/C, with histological evaluation not conclusive, underwent in 2017 99mTc-colloid scintigraphy.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Chiloiro S

Authors: Chiloiro S, Mirra F, Donfrancesco F, Bianchi A, Bima C,

Keywords: 99mTc-colloid scintigraphy,