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.
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.
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.
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.
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.
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.
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.
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.
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.