The incidence and duration of COVID-19 vaccine-related reactive lymphadenopathy on F-FDG PET-CT.

Objectives: Reactive axillary lymph nodes (ALN) may occur post-COVID-19 vaccination. This may be confused with malignant nodal metastases on oncological imaging. We aimed to determine the reactive ALN incidence and duration on F-fluorodeoxyglucose positron emission tomography - computed tomography (F-FDG PET-CT), and its relationship with gender, age and vaccine type.

The utility of 18F-fluorodeoxyglucose positron emission tomography with computed tomography in endocarditis: a case series.

Background: Infective endocarditis secondary to can present with classical constitutional symptoms of infective endocarditis but can be blood culture negative and without vegetations on transthoracic or transoesophageal echocardiogram. Patients with prosthetic valves are at particularly high risk.

Case Summary: We present two patients who were diagnosed with infective endocarditis secondary to infection.

Identification of an optimal threshold for detecting human brown adipose tissue using receiver operating characteristic analysis of IDEAL MRI fat fraction maps.

Purpose: Lower fat fraction (FF) in brown adipose tissue (BAT) than white adipose tissue (WAT) has been exploited using Dixon-based Magnetic Resonance Imaging (MRI) to differentiate these tissues in rodents, human infants and adults. We aimed to determine whether an optimal FF threshold could be determined to differentiate between BAT and WAT in adult humans in vivo.

Methods: Sixteen volunteers were recruited (9 females, 7 males; 44.

Brown fat depots in adult humans remain static in their locations on PET/CT despite changes in seasonality.

Active brown adipose tissue (BAT) in humans has been demonstrated through use of positron emission tomography with 2-deoxy-2-(fluorine-18) fluoro-D-glucose integrated with computed tomography (F-FDG PET/CT) scans. The aim of our study was to determine whether active human BAT depots shown on F-FDG PET/CT scans remain static in their location over time. This was a retrospective study.

Identification of brown adipose tissue using MR imaging in a human adult with histological and immunohistochemical confirmation.

Objective: Manipulation of human brown adipose tissue (BAT) represents a novel therapeutic option for diabesity. The aim of our study was to develop and test a novel magnetic resonance (MR) imaging-based method to identify human BAT, delineate it from white adipose tissue, and validate it through immunohistochemistry.

Design: A 25-year old Caucasian female with hyperparathyroidism-jaw tumor syndrome underwent parathyroidectomy.

Orbital carcinoid metastasis: diverse presentations and value of indium-octreotide imaging.

Purpose: To report two cases of orbital carcinoid metastasis (OCM) with diverse presentations and the role of Indium-Octreotide scan in management of these patients.

Methods: Clinical, histological and radiological findings and management of the two patients are described. Results are presented.