The objective of this article is to provide an illustrative tutorial highlighting the utility of 18F-fluorodeoxyglucose-positron emission tomography/computed tomography (18F-FDG-PET/CT) imaging to detect spectrum of manifestations in patients with tuberculosis (TB). FDG-PET/CT is a powerful tool for early diagnosis, measuring the extent of disease (staging), and consequently for evaluation of response to therapy in patients with TB.
Primary esophageal lymphoma is very rare. We report a patient with non-Hodgkin's lymphoma involving the lower one-third of the esophagus. Presenting with dysphagia, he was treated successfully by transhiatal esophagectomy along with combination chemotherapy. We review the relevant literature.
Objective:We aimed to compare the diagnostic accuracy of 18F-Fluorocholine (FCH)-positron emission tomography/computed tomography (PET/CT) and four-dimensional (4D)- CT in detection and localization of eutopic and ectopic parathyroid adenoma (PA) in patients with hyperparathyroidism.Materials and Methods:Five patients with primary hyperparathyroidism underwent FCH-PET/CT after 60 min of 185 MBq of intravenous 18F-FCH administration. Images were acquired from head to mediastinum at 3 min per bed position. No intravenous contrast was used. All patients underwent 4D-CT within 2 weeks of the FCH-PET/CT, with a precontrast, post contrast arterial, and venous phase with 75 ml intravenous Iohexol 350 followed by 25 ml saline chase. Histopathology was considered as the gold standard.Results:Both modalities showed 100% concordance in the detection of parathyroid lesions. Both FCH-PET/CT and 4D-CT detected 7 lesions in 5 patients, with 4 patients having a single lesion, and 1 patient having three lesions. Of the 7 reported lesions, 4 were eutopic and 3 were ectopic. No additional lesions were detected by either modality in comparison to the other. All 7 specimens were resected and histopathology showed PA/hyperplasia.Conclusion:FCH-PET/CT and 4D-CT are equally efficacious in detection and localization of eutopic and ectopic PA. This may open up the possibility of using FCH-PET/CT in patients with negative conventional imaging who cannot undergo contrast studies.
In this report, the authors highlight 2 effective and simple techniques of video documentation of the anterior chamber angle using the newer generation iPhone, iPhone 11 Pro Max. In these techniques, we also used a commercially available macro lens with the phone. The patient positions his/her chin on a slit-lamp biomicroscope as done during a routine slit-lamp examination. The first observer places the gonioscope over the patient’s eye and projects a thin slit beam of light of the slit-lamp biomicroscope along the superior or inferior Gonio mirror. A second observer records the anterior chamber angle findings using the macro lens clipped smartphone after bringing it closer to the eye of the patient. In the phone, the video mode is selected after opening the phone’s camera application. In the subcategory of video mode, 1× or the wide-angle mode is chosen. Under 1× mode, the magnification is further increased to 3× to document high-quality imaging findings of angle. Similarly, in the second technique, the slit (streak) light beam of the direct ophthalmoscope was used that completely circumvented the need for a slit lamp as a source of light.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.