We compared the imaging features of patients with isolated cardiac FDG uptake on positron emission tomography with those who had findings indicative of systemic sarcoidosis.
This makes an intriguing case for FDG PET-CT use with pretest diet prep over cardiac MRI (CMR) for cardiac sarcoid evaluation, given that CMR is likely to overlook these extra-thoracic sites of disease.
It has correlation with a more acute and symptomatic phase of thoracic sarcoidosis and therefore expected to show a more severely increased metabolic activity on FDG PET.
F-FDG PET/CT imaging is a noninvasive imaging technique that can be crucial in the diagnosis of sarcoidosis of the spinal cord and help avoid unnecessary procedures.
It has correlation with a more acute and symptomatic phase of thoracic sarcoidosis and therefore expected to show a more severely increased metabolic activity on FDG PET.
Fluorine-18 fluorodeoxygluose (<sup>18</sup>F-FDG) positron emission tomography (PET) is a useful tool for evaluating disease activity in sarcoidosis including cardiac involvement.
We present a rare case of a 37-year-old woman with bihilar, mediastinal, and abdominal lymphadenopathy in conjunction with a histologically proven cutaneous manifestation of sarcoidosis in a tattoo of the lower back exhibiting an increased uptake of FDG.
Thyroid gland characteristics of patients with a clinical diagnosis of NF1 who underwent <sup>18</sup>F-FDG PET/CT imaging for the first time to distinguish benign neurofibroma from malignant peripheral nerve sheath tumor (MPNST) at our institution (<i>n</i> = 69) were compared to PET/CT imaging of sarcoidosis (<i>n</i> = 25) and early stage lung cancer (T<sub>1</sub>N<sub>0</sub>M<sub>0</sub> tumors, <i>n</i> = 15) patients.
A 75-year-old woman with a history of sarcoidosis presenting with low cardiac output and complete right bundle-branch block underwent 4'-[methyl-C]-thiothymidine (4DST) PET/CT after cardiac MRI and FDG PET/CT for the evaluation of suspected cardiac sarcoidosis (CS) before treatment.