Pretreatment [F]FDG PET/CT and MRI in the prognosis of nasopharyngeal carcinoma.

Objective: The present study aimed to assess the prognostic interest of metabolic and anatomic parameters derived from 2-deoxy-2-[F]fluoro-D-glucose positron emission tomography/computed tomography ([F]FDG PET/CT) and head and neck magnetic resonance imaging (HN-MRI) for better management of nasopharyngeal carcinoma (NPC).

Methods: In this study, pre-treatment [F]FDG PET/CT and HN-MRI parameters of NPC patients diagnosed between January 2017 and December 2018, were prospectively investigated. Correlation between those parameters and 4-year patient's survival outcomes was evaluated using Kaplan-Meier and Cox-regression analyses.

Concomitant occurrence of primary hyperparathyroidism (PHPT) due to mediastinal parathyroid adenoma and sublingual thyroid gland: the role of parathyroid technetium-99m-MIBI scintigraphy.

The concomitant appearance of a sublingual thyroid and primary hyperparathyroidism due to parathyroid mediastinal adenoma is not common. This co-occurrence can lead to a misdiagnosis by morphological imaging methods alone. This case emphasizes the role of 99mTc-MIBI scintigraphy in the detection of parathyroid ectopic adenoma in a patient with an ectopic thyroid gland.

[Cutaneous Merkel cell carcinoma: role of 18FDG PET-CT].

Merkel cell carcinoma (MCC) is a rare neuroendocrine carcinoma of the skin with unpredictable evolution and high metastatic potential. This neoplasm usually occurs in the elderly on their sun-exposed areas. CCM constant greed for 18 fluorodeoxyglucose (FDG) defines the role of positron emission tomography (PET) in this pathology.