Evaluation of rare choroid plexus metastasis from papillary thyroid carcinoma with multimodality imaging.

Papillary thyroid carcinoma (PTC) is the most common malignancy of thyroid gland. Though it metastasizes primarily through lymphatics, hematogenous spread is not infrequent. We report the case of a 62-year-old male patient with intraventricular choroid plexus metastasis from PTC, incidentally detected on post-high-dose radioiodine therapy whole-body I scan, which is an extremely rare presentation.

Myocardial perfusion imaging after transient balloon occlusion during percutaneous coronary interventions.

Background: Myocardial perfusion imaging (MPI) is highly sensitive in detecting rest ischemia when the radiotracer is injected during the episode of ischemia. The frequency of abnormal MPI results after resolution of ischemia is not well defined. The aim of this study was to determine how long MPI results remain abnormal after transient coronary artery occlusion.

Recurrent lymphoma detected on F-18 FDG coincidence imaging with negative findings on Ga-67 citrate scintigraphy.

Ga-67 citrate scintigraphy and computer tomography have been used in tumor staging, to determine disease extent, and for the pre- and post-therapeutic management of Hodgkin's and non-Hodgkin's lymphoma. Today, localization of hypermetabolic tissue using F-18 FDG is beginning to play a role in the staging and restaging of lymphoma. The authors report a case of recurrent Hodgkin's lymphoma in a 31-year-old man detected by F-18 FDG.